Question: What year was Mike Cavan's successor born?
Context: Mike Cavan was the coach of the Southern Methodist University's football team from 1997 to 2001.  He compiled a 22–34–0 record, and was succeeded by Phil Bennett. Phil Bennett (born December 3, 1955) is an American football coach and former player.  He is the defensive coordinator at Arizona State Sun Devils.  Prior to this position, he served as the defensive coordinator for the Baylor Bears from 2011-2016, and was interim head coach of the Pittsburgh Panthers during their 2011 BBVA Compass Bowl win over Kentucky after serving as defensive coordinator of the Panthers for three seasons.  Prior to coaching the Panthers, he served as the head football coach at Southern Methodist University (SMU) from 2002 to 2007.  Before his stint at SMU, he served as an assistant coach at seven different colleges. Rory Gallagher (born 22 August 1978) is a former gaelic footballer and former manager of Donegal.  Gallagher has lined out for the Fermanagh and Cavan inter-county teams, as well as several club teams, including his home club Erne Gaels, as well as Dublin side Saint Brigids and Antrim's St Gall's.  He was a selector for Donegal during their 2012 Championship success, acting as number two to Jim McGuinness.  He left the Donegal panel after the 2013 championship but later returned as Jim McGuinness's successor in October 2014 when McGuinness stood down after Donegal lost to Kerry in the 2014 All-Ireland SFC Final.  He was joint manager of CLG Chill Chartha with John McNulty in 2014 during his time out from the county panel. Michael Lawrence Williams (born May 31, 1953) is the former education commissioner of the U.S. state of Texas, in which capacity he was leader of the Texas Education Agency.  He was appointed to the position on August 27, 2012, by then Governor Rick Perry.  On October 15, 2015, Williams announced that he would step down as education commissioner at the end of the year to return to the private sector.  The 200-mile one-way commute from his home in Arlington to the state capital in Austin had become too taxing to remain in the position, Williams said.  Perry's successor, Governor Greg Abbott, named Mike Morath as Williams' successor in the position. Edward Joseph Kennedy (born Cavan, 1851) was an Irish politician.  He was elected as an Irish Nationalist Member of Parliament for South Sligo in 1887, resigning in 1888 by becoming Steward of the Manor of Northstead.  He was Lord Mayor of Dublin for the year 1890. The 1997 SMU Mustangs football team represented Southern Methodist University in the 1997 NCAA Division I-A football season as members of the Western Athletic Conference (WAC) in the Mountain Division.  They played their home games at the Cotton Bowl in Dallas, Texas.  Under first-year head coach Mike Cavan and ten years after the NCAA's 1987 "death penalty" on SMU football, SMU finished the 1997 season with a 6–5 record and completed their first winning season since the football program resumed operations in 1989. Mike Cavan (born April 15, 1948) is a former American football player and coach.  He served as the head coach at Valdosta State University (1986–1991), East Tennessee State University (1992–1996) and Southern Methodist University (1997–2001), compiling a career college football record of 89–83–2.  Cavan played as a quarterback at the University of Georgia from 1968 to 1970 and was an assistant coach there from 1977 to 1985. Tom Rossley was the coach of the Southern Methodist University's football team from 1991 to 1996.  He compiled a 15–48–3 record, and was succeeded by Mike Cavan. Cavan Clerkin (born 28 November 1973) is a British television actor and writer.  He has appeared in comedy shows including "Pulling", "The Inbetweeners", "Smack the Pony", "The IT Crowd", "Jonathan Creek" and "Look Around You".  He also appeared in the films "Gangster No 1", "Spivs" and "Pierrepoint".  He has written for "Smack the Pony", and co-created the comedy series "Los Dos Bros", in which he also starred.  In 2009, he appeared in the soap opera "EastEnders" as Joel Reynolds.  and in 2011 he appeared as Leonard Glickman in "The Shadow Line".  He wrote, produced and starred in British Independent feature film ""Nice Guy""and in 2014 played DCI Gerring in ITV drama "Lucan" and Clarkey in Channel 4's police satire "Babylon".  That year he also appeared in episode 4 of the BBC sitcom "Count Arthur Strong".  In 2016, he is currently playing "Vinnie", a talent manager, in Morgana Robinson's, "The Agency". The 1998 SMU Mustangs football team represented Southern Methodist University in the 1998 NCAA Division I-A football season as members of the Western Athletic Conference (WAC) in the Mountain Division.  They played their home games at the Cotton Bowl in Dallas, Texas.  Head coach Mike Cavan returned for his second season leading SMU, following a 6–5 season in 1997, SMU's first winning season since the 1987–88 SMU "death penalty" was handed down by the NCAA, the highest punishment possible in the association.  SMU finished the season 5–7 (4–4 WAC), but SMU vacated 10 games after Steve Malin was found to have been ineligible due to academic fraud.
Answer: 1955