According to this information, Starr was used sparingly at Alabama for various reasons:
"As the Korean War was fought during Starrs freshman year, the Southeastern Conference of which Alabama is a part allowed freshmen to play varsity ball. Starr did not start for Alabama his freshman year, but did play enough minutes to earn a varsity letter. His high point of the season was in the Orange Bowl, where in quarterback relief he completed eight of 12 passes for 93 yards and a touchdown.
Bart Starr entered his sophomore year as Alabamas starting quarterback, safety and punter.
His punting average of 41.4 yards per kick ranked second in the nation in 1953 behind Zeke Bratkowski. Alabama recorded a 623 record and lost in the Cotton Bowl to Rice by a score of 286. Starr completed 59 of 119 passes for 870 yards, with eight touchdowns that season.
In May 1954, Starr eloped with Cherry Morton. The couple chose to keep their marriage a secret. Colleges often revoked the scholarships of married athletes in the 1950s, believing their focus should remain on sports. Cherry remained in Jackson, Alabama, while Starr returned to the University of Alabama. That summer, Starr suffered a severe back sprain while punting a football. He rarely played during his junior year due to the injury. The back sprain would occasionally bother him the rest of his football career. After a disappointing season of 452, Red Drew was replaced by J.B. Whitworth as coach of Alabama.
Whitworth conducted a youth movement in Alabama for the 1955 season and only two seniors started for the team. While healed from the back injury, Starr rarely played in his senior season either. Starr played briefly in the BlueGray bowl of 1955" (
Bart Starr - Wikipedia, the free encyclopedia).
Although things definitely worked out well for Starr in the NFL, he would have been better served, in the short term, to have attended Kentucky, a school to which Starr gave serious consideration and which was then coached by some fellow named Bryant.