I know it has been talked about a lot, but I am not sure if I ever saw the numbers before with regards to returning Iowa quarterbacks.
Under KF, Iowa has had 3 quarterbacks start for 3 years. This is how they fared:
Drew Tate: 2004 (10-4), 2005 (7-5), 2006 (6-7)
Ricky Stanzi: 2008 (9-4), 2009 (11-2), 2010 (7-5)
Nate Stanley: 2017 (8-5), 2018 (9-4), 2019 (10-3)
Of the 2 year starters, there have been 4 of those:
James Vandenberg: 2011 (7-6), 2012 (4-8)
Jake Rudock: 2013 (8-5), 2014 (7-6)
CJ Beathard: 2015 (12-2), 2016 (8-5)
Spencer Petras: 2020 (6-2), 2021 (10-4)
There have only been 3 quarterbacks that only started 1 year:
Brad Banks: 2002 (11-2)
Nathan Chandler: 2003 (10-3)
Jake Christensen: 2007 (6-6)
Not counting Petras (it is hard to evaluate the difference between 6-2 and 10-4), of the 9 opportunities that Iowa quarterbacks had to improve the team record in each subsequent year, they only did 3 times. So 67% of the time that an Iowa quarterback starts multiple years, the team record with that quarterback starting will be worse than the year before it.
Of course there are so many other factors that determine outcomes of games, but there is no ignoring that is a huge number and most would think that, at worst, should be the opposite in that a teams record should be better with a more experienced quarterback. As much as I hate to say it, the numbers are certainly not on Spencer's side here for 2022. Bright side though, Nate Stanley was able to improve the team record by 1 game in both his junior and senior seasons. So lets hope we have a little more Nate than Tate here as he has been the only Iowa 3 year starter to win 10 games.