To clarify though on that "bargain" 19.5 mil cap figure in 2015, here's some comparison 2015 QB salary cap hits;

Aaron Rodgers $20~mil
Peyton Manning $18~mil
Matt Stafford $16~mil
Tony Romo $16~mil
Tom Brady $14~mil

Kirk WAS asking for over market value at the time in question https://t.co/iCv1u0YlTO

— Chad Ryan (@ChadwikoTWW) February 9, 2018