Marshall just doesn't get along with many people. He hated Henne,Moore, and Orton. He couldn't stand Josh McDaniels. Guys like Brian Dawkins and Champ Bailey hated him out in Denver. The only QB he's liked during his time in the NFL has been Cutler.
To take on a guy like Marshall, you need to have an established positive culture in place, and even then, it's a huge risk. Anyone who thinks this team would be better off with him than without him doesn't understand the importance of team chemistry. Also, do you really want your rookie QB dealing with a guy who throws tempers when things don't go his way. A guy who drops passes and is an unreliable route runner. Unless Marshall does a complete 180, he'll never be part of a team who wins on a consistent basis - year after year.
Not to mention,he missed his Husband somethin awful(Cutler)!!!
Because Philbin didnt want him.
VOTE FOR UK IN FH MARCH MADNESS
I feel like the reason was def character related, Marshall would have been vocal if Tannehill did not throw him the ball. You want your qb getting the ball to your playmakers but you dont want him forcing the ball to him. Marshall is a very good player but I am sure that his personality would scare Philbin. Cutler and Marshall have a different type of relationship. Marshall knows Cutler will force the ball into him and Jay really does not care if he throws INT's as a result. Also Miami had a chance to get 2 premium draft picks for Marshall so everything kinda fell into place.
Dude is helping my fantasy team a lot so that's all I care about at this point. I miss his production in Miami's offense but it's in the past now.