Question: What producer works on the twelfth incarnation of Hanna-Barbera's "Scooby-Doo?"

Context paragraphs:
Be Cool, Scooby-Doo!: Be Cool, Scooby-Doo!  is an American animated television series produced by Warner Bros.  Animation, the twelfth incarnation of Hanna-Barbera's "Scooby-Doo" animated series.  In the show, the "Scooby-Doo" gang decide to travel in their last summer break together, encountering havoc-wreaking monsters along the way.  Described as having a more comedic tone than its previous incarnation, "Scooby-Doo!  Mystery Incorporated", the show employs character traits from the original 1969 series on top of redesigned character models.

Scooby-Doo and Scrappy-Doo (1979 TV series): The original thirty-minute version of Scooby-Doo and Scrappy-Doo constitutes the fourth incarnation of the Hanna-Barbera Saturday morning cartoon "Scooby-Doo".  It premiered on September 22, 1979 and ran for one season on ABC as a half-hour program.  A total of sixteen episodes were produced.  It was the last Hanna-Barbera cartoon series (excluding prime-time specials) to use the studio's laugh track.

What's New, Scooby-Doo?: What's New, Scooby-Doo?  is an American animated sitcom mystery comedy series produced by Warner Bros.  Animation for The WB television network; it is the ninth incarnation of the "Scooby-Doo" franchise that began with Hanna-Barbera's "Scooby-Doo, Where Are You! " and the first of such since the previous incarnation, "A Pup Named Scooby-Doo", ended in 1991.  The series revives the format of "Scooby-Doo, Where Are You!" , in which the title character and his companions, Fred Jones; Daphne Blake; Velma Dinkley and Shaggy Rogers, travel to varying locations solving mysteries; this format is modernized for "What's New, Scooby-Doo?" , in which the characters utilize technology that did not exist at the time "Scooby-Doo, Where Are You!"  first aired.  It is the first television series in the franchise in which Frank Welker, Grey DeLisle and Mindy Cohn respectively portrayed the voices of Scooby-Doo, Daphne and Velma; and the final one in which Casey Kasem portrayed Shaggy, having originally quit the role following a dispute regarding the portrayal of the character.

Shaggy &amp; Scooby-Doo Get a Clue!: Shaggy & Scooby-Doo Get a Clue!  is an American animated comedy series produced by Warner Bros.  Animation, the tenth incarnation of Hanna-Barbera's "Scooby-Doo" franchise.  It debuted on September 23, 2006, and ran for two seasons during the Kids WB Saturday morning block of The CW Television Network.  It was the final animated series produced by Hanna-Barbera co-founder Joseph Barbera before his death.  The second season premiered in Canada on Teletoon on September 6, 2008, and was also available online at Cartoon Network Online.

Scooby-Doo and Scrappy-Doo (1980 TV series): The Scooby-Doo and Scrappy-Doo shorts represents the fifth incarnation of the Hanna-Barbera Saturday morning cartoon "Scooby-Doo" series.  A total of 33 half-hour episodes, each of which included three 7-minute shorts, were produced over three seasons, from 1980 to 1982 on ABC.  Thirteen episodes were produced for the 1980–81 season, and seven more for the 1981-82 as segments of "The Richie Rich/Scooby-Doo Show".  The remaining thirteen episodes were produced as segments of "The Scooby & Scrappy-Doo/Puppy Hour" for the 1982-83 season.  Out of the 99 shorts that were produced, 86 of them feature Scooby-Doo, his nephew Scrappy-Doo and Shaggy without the rest of the Mystery Inc gang, and the other 13 only feature Scrappy-Doo and Yabba-Doo.

A Pup Named Scooby-Doo: A Pup Named Scooby-Doo is an American animated mystery comedy series produced by Hanna-Barbera.  It is the eighth incarnation of the studio's "Scooby-Doo" franchise, and depicts juvenile versions of the title character and his human companions as they solve mysteries, similarly to the original "Scooby-Doo, Where Are You! " television series.  The series was developed by Tom Ruegger and premiered on September 10, 1988, airing for four seasons on ABC as well as during the syndicated block "The Funtastic World of Hanna-Barbera" until August 17, 1991.  Ruegger, along with most of Hanna-Barbera's production staff, departed from the studio after the first season.

The New Scooby-Doo Movies: The New Scooby-Doo Movies is an American animated mystery comedy television series produced by Hanna-Barbera for CBS.  It is the second animated television series in the studio's "Scooby-Doo" franchise, and follows the first incarnation, "Scooby-Doo, Where Are You! ".  It premiered on September 9, 1972 and ran for two seasons on CBS as the only hour-long "Scooby-Doo" series.  Twenty-four episodes were produced, sixteen for the 1972–73 season and eight more for the 1973–74 season.

The Richie Rich/Scooby-Doo Show: The Richie Rich/Scooby-Doo Show is a 60-minute Saturday morning animated package show produced by Hanna-Barbera Productions and broadcast on ABC from November 8, 1980 to September 18, 1982.  The program contained segments of "Scooby-Doo and Scrappy-Doo" and "Richie Rich".  The "Scooby-Doo and Scrappy-Doo" shorts represents the sixth show in which Scooby-Doo appears.  This was the only Hanna-Barbera package series for which "Scooby-Doo" was given second billing and also notable for Richie Rich's debut in animation.

The Scooby-Doo Show: The Scooby-Doo Show is an American animated mystery comedy series.  The title of the series is an umbrella term for episodes of the third incarnation of Hanna-Barbera's "Scooby-Doo" franchise.  A total of 40 episodes ran for three seasons, from 1976 to 1978, on ABC, marking the first "Scooby" series to appear on the network.  Sixteen episodes were produced as segments of "The Scooby-Doo/Dynomutt Hour" in 1976, eight episodes were produced as segments of "Scooby's All-Star Laff-A-Lympics" in 1977 and sixteen episodes were produced in 1978, with nine of them running by themselves under the "Scooby-Doo, Where Are You! " name and the final seven as segments of "Scooby's All-Stars".

Zac Moncrief: Zachary Thomas Moncrief (born January 8, 1971) is a producer and director of animated television programs, currently serving as the producer for Warner Bros.  Animation for the Cartoon Network series "Be Cool, Scooby-Doo! ".  In 2009, an episode from the hit Disney Television series "Phineas and Ferb" which he directed entitled "The Monster of Phineas-n-Ferbenstein" received a Primetime Emmy Award nomination in the category for Outstanding Special Class Short-format Animated Programs.

Supporting paragraphs: Zac Moncrief Be Cool, Scooby-Doo!
Answer: Zachary Thomas Moncrief