[WillH]

This team is just still not very good. A strong ground game on Offense and Defense can keep you in and win games even with bad special teams play, but having a QB that can't make plays for you when the game is on the line, and has bad judgement is just too big a hurdle to overcome.

KC may get better, I know people have posted his numbers compared to the start of some elite QB's numbers at the same point in their career, but I think you could find many more examples of young QBs with similar stats that did not improve. For example this is how he compares with Patrick Ramsey:

G GS Cmp Att Cmp% Yds TD Int Rate Y/A AY/A AY/A
Cousins 16 11 284 465 61.1 3429 20 21 79.2 7.4 6.2 6.2
Ramsey 16 12 246 463 53.1 3169 17 14 78.2 6.8 6.2 6.2