Changing quarterbacks can be a career changing experience for some players. When Norm Chow arrived at USC, Carson Palmer was coming off of his sophomore season where he threw 18 interceptions to just 16 touchdowns. His quarterback rating was 117.97 as he completed just under 55% of his attempts. Ironically, Palmer was coming back from a season ending injury his sophomore season. Under Chow's guidance, Palmer increased his quarterback rating to 124.17 and his completion percentage to 58.6% during his junior season while he threw 13 touchdowns and 12 interceptions. He was even much better his senior season, winning the heisman while completing 63.2% of his passes with a qb rating of 149.09, 33 touchdowns and only 10 interceptions.
If you trace Palmer's career qb rating, he started at a below avg 122.7, dropped even further to 117.97 after returning from an injury, and regained his previous form with a 124.17 when Chow arrived. He then improved to 149.09 and won the Heisman.
The latest quarterback to increase his performance after playing under a new coach is Brady Quinn of Notre Dame. Last season, Quinn had a qb rating of 125.87 while completing just under 55% of his passes. He had 17 touchdowns and 10 interceptions. This season, under Weiss (and partially under Cutcliffe), he has completed 65% of his attempts with 32 touchdowns and 7 interceptions for a qb rating of 162.91.
If you trace Quinn's performance, he started with a pitiful 93.53, improved to an below average 125.87, and under Cutcliffe/Weiss improved to 162.91 this past season.
Ainge has a career qb rating of 116.47. However, his rating dipped to 89.94 this past season. That low of rating is hard to do. That is probably the worst qb rating for a starter at Tennessee in the last 30 years. It takes alot to dip below 100 in qb rating. His freshman qb rating of 135.89 is better than all but Palmer's heisman season and Quinn's season this year. At the least, I would expect his rating to be in the 130s next season. Looking over some past performances for UT quarterbacks, a somewhat average season will get into the 120s.
Looking back at past season's when Cutcliffe was the Offensive Coordinator, I expect the starting qb to get about 350 passing attempts. At a 60% completion percentage and 7 yards per attempt, the yardage equates to 2450 yards. Only one quarterback under Cutcliffe with less than 350 attempts has had over 10 interceptions in a season (Cutcliffe's first season as quarterbacks coach in 1990, Andy Kelly had 14 interceptions in 304 attempts). 23 TDs and 8 interceptions would give a rating of 135.91... back to where he was before his injury. I would expect the Vols to emphasize the run and then pass with Ainge getting somewhere near 210-of-350 for 2450 yards, 23 TDs and 8 ints.