Question: The British sitcom starring Sharon Horgan and Rob Delaney is produced by a man known for his collaborations with who?

Context paragraphs:
Adam Tandy: Adam Tandy is a British television producer and director, perhaps best known for his collaborations with Armando Iannucci.  As such, he has worked on "The Saturday Night Armistice", "The Armando Iannucci Shows", "Time Trumpet" and most recently "The Thick of It".  In 2009 he moved into film producing with the hit "Thick of It" adaptation "In the Loop".  After the 2012 series of "The Thick of It", he has produced "Catastrophe" for Channel 4, as well as "Inside No. 9" and "Detectorists" for the BBC.

Dennis Kelly: Dennis Kelly (born November 16, 1969) is a British writer for film, television and theatre.  He is perhaps best known for co-writing BBC Three's sitcom "Pulling" with actress Sharon Horgan, for co-writing "Matilda the Musical" with comedian Tim Minchin, and for the Channel 4 conspiracy thriller "Utopia".

Catastrophe (2015 TV series): Catastrophe is a British sitcom first broadcast on 19 January 2015 on Channel 4.  It stars Sharon Horgan as Sharon Morris and Rob Delaney as Rob Norris, who get together after she becomes pregnant following a brief affair while he is in the UK on business.  Carrie Fisher, Ashley Jensen, and Mark Bonnar play supporting characters in the series.

Angelo's: Angelo's was a British sitcom that aired on Five in 2007.  One series of six episodes was produced.  It was written by Sharon Horgan who was also a member of ensemble cast.  Steve Brody starred in the titular role as the proprietor of London cafe Angelo's.  Also starring was Shelley Longworth as Maria, Angelo's daughter, Alice Lowe, Miranda Hart and Javone Prince.  Paul Kaye and Belinda Stewart-Wilson guest starred.  Horgan claimed that before the show aired, they discovered that Five had decided not to fund any more original comedy, effectively cancelling the show.

Free Agents: Free Agents is a romantic black comedy starring Stephen Mangan, Sharon Horgan and Anthony Head.  Originally a pilot for Channel 4 in November 2007, the series began on 13 February 2009.  It spawned a short lived US remake, which was cancelled after just 4 episodes aired, although 4 more were later released on Hulu.

Bad Sugar: Bad Sugar is a British comedy pilot, written by Sam Bain and Jesse Armstrong, based on an idea by the show's stars Olivia Colman, Julia Davis and Sharon Horgan.

Divorce (TV series): Divorce is an American comedy series created by Sharon Horgan, and starring Sarah Jessica Parker and Thomas Haden Church.  The series premiered on HBO on October 9, 2016.  The pilot episode was written by Horgan and directed by Jesse Peretz.

Freaky Eaters: Freaky Eaters is an observational British documentary series produced by independent television production company "betty" for BBC Three from 2007 to 2009.  Series 1 was narrated by the actress Jill Halfpenny and series 2 by Sharon Horgan.  In Australia it is shown on ABC2 and titled "Eataholics".

Pulling (TV series): Pulling is a BBC comedy series, produced by Silver River Productions and broadcast on BBC Three, about three single female friends who live in Penge, south-east London.  It was co-written by Sharon Horgan and Dennis Kelly and stars Horgan as Donna, Tanya Franks as Karen, Rebekah Staton as Louise and Cavan Clerkin as Karl.  "Pulling" was the last comedy show developed by Harry Thompson before his death.

The Increasingly Poor Decisions of Todd Margaret: The Increasingly Poor Decisions of Todd Margaret is a British-American black comedy television series starring David Cross, Sharon Horgan, Blake Harrison, Will Arnett, and Spike Jonze.  The series is produced by IFC and RDF Television and premiered on October 1, 2010, on IFC.

Supporting paragraphs: Adam Tandy Catastrophe (2015 TV series)
Answer: Armando Iannucci