You post implies if you were the GM, you would have given up on Marino after his first knee surgery (back when the surgery and recovery was way more risky and less of a sure thing). Hell, this puts you into the "not taking Brees because of his shoulder" camp too. How much money do you have down on the Colts moving away from Luck this year? Knees are a relatively safe repair and recovery these days, and Tannehills injury wasn't bad as far as knees go. But if we are to take your premise on face value, then how many of our other guys who are far more dependent on running on EVERY play and are recovering from knee surgery are you going to replace this draft?
Marino was great in the pocket....He almost never scrambled for yards.....
Tannehill is the opposite of marino.....Tannehill needs to scramble in order to survive in this league. Thats where iam afraid he will not last too much. Tannehill is a terrible pocket qb. Again...and Good on the run. Or as a run and shoot.