Why does trent dilfer act as if he hadnt played on the ravens in 2000 he still wouldve won a championship?

I dont get it?? The guy give advice to Qbs like he had 1 good game in the league?? Hes not the first back-up to win a title but the more i hear him talk about football the more i want to throw up!! I remember when brady and manning had ofseason surgery and he gave ''over the air'' advice to them....I was like really???? Trent dilfer ...telling manning and brady how to cope w/ offseason surgery??? mustve been ESPN comedy hour!! And now hes telling mark sanchez and bradford tips on making an impact in the league immediately...???? I was like who keeps letting this guy speak????? your thoughts??