It's a statistic, it's not an opinion!
There are the long time GM's like BB, Colbert, Loomis, Snead etc. Guys that have had 10+ drafts. Keim will drop into this bunch after this draft and actually be the 4th worse of 10.
But looking at the intermediate guys who have been in place less than 10 but more than 5 he does have the 2nd best record behind only Jon Robinson of the Titans.
The funny thing is, if you went back to 2012 and said "Your next GM will have 4 winning seasons from the next 9, 2 season of .500, a 3rd season that was practically .500 and 2 ugly losing seasons and a 76-67 record" I think most Cards fans would have said "Yes please. Sign me up". Arguably if Palmer isn't injured in 2014 and Todd Bowles doesn't leave in 2015 we have genuine SB shots.
I don't want him to stay. I think he's often blind to obvious weaknesses. There are obvious moves he could make that he never does. His drafting obviously sucks, although it was a brave move to bin Rosen and draft Kyler.
But objectively speaking he's not garbage. He's average. Maybe even slightly above average. But the franchise should aspire to better (but we should also acknowledge that the change may end up worse, which might be why Mike is hesitant).
Sometimes the worst thing you can have is someone who is a little bit good.