When you pay average QBs $20M a year you get yourself fired. If your names aren't Brady, Rodgers, Manning, Brees, Wilson, Roethlisberger and Luck you should not be paying a QB more than $17M a year. Veterans who don't get injured like Ryan, E Manning, Flacco, and Cam should be between $12-16M a year. All other teams should be making sure to draft and develop QBs and if their QB wants big time money walk away because you will never win with them.
Tannenhill, Cutler, Kaep, Romo, Stafford, Smith, Dalton, Rivers, Bradford and Foles are all over $12M and you can never win with these guys (maybe Romo and Rivers can take you to the playoffs, but Romo is always hurt and Rivers looks old now) and you might as well build a strong team around them.