There is a reason why the Heisman guys don’t pan out so well in the NFL as you point out
2019 Joe Burrow - very good in the NFL
2018 Kyler Murray - very good in the NFL
2017 Baker Mayfield - decent in the NFL
2016 Lamar Jackson - NFL MVP
2015 Derrick Henry - approaching top 10 ever RB status
2014 Marcus Mariota - bust for franchise QB but solid backup (will have a long career)
2013 Jameis Winston - bust for franchise QB but solid backup (will have a long career)
2012 Johnny Manziel - bust
2011 RG3 - bust for franchise QB him but solid backup (will have a long career)
2010 Cam Newton - NFL MVP
2009 Mark Ingrim - great player
2008 Sam Bradford - was very good until injuries killed him... sort of a bust I guess
2007 Tim Tebow - bust as a QB but passed on a great career as a TE/FB... good to have options in life
2006 Troy Smith - bust
2005 Reggie Bush - decent in the NFL but definitely below expectations
2004 Matt Leinert - bust
2003 Jason White - bust
2002 Carson Palmer - solid career
2001 Eric Crouch - bust
2000 Chris Weinke - bust
It looks like we went through a long period of busts until 2013, then every winner at least had a decent career. It looks like the moral of the story is position player winners are actually great players while QBs are getting the benefit of a great team or offense around them.