No doubt he has had issues but some team will take a chance on a lineman that up until he walked out was an NFL starting player and was a very good college player.
Incognito has now been kicked off like 4 teams and some team will probably sign him also. I wouldn't want either guy to be on my team if I had the choice but some coaches like a challenge and talent will entice somebody to do it.
He never walked out on Harbaugh so who knows. There are a lot of linemen worse than Incognito or MArtin in the NFL and teams are not all going to pass when a low budget risk like that comes into play.
Coming back to Miami will be rougher than anywhere else because the players here seemed to support InCognito over Martin, another team with different players may not see it so clear cut,