Making him available for trade and trading him are 2 entirely different things. I believe this is an educated move by management. He is now on everyone's radar as a possible solution to any issues they may have at CB going forward. He will not/should not be actually traded until we get what we want as compensation. Until then he plays and develops a reputation for whatever that level of play happens to be. His lack of motivation can be about anything as good CB's for the most part tend to be a bit on the Prim-Donna side of the equation. A few below:

a. Leftovers from a 1-15 season where getting ready to play at that level doesn't take much preseason effort.
b. Looks around at the talent being brought in and says, hey I can beat these guys with minimal effort.
c. Looks around at the competition for CB and says oh no can I stay on the field with these guys?
d. Thinks by getting traded he can get another big check
e. Has a show me we are going to be a better team first attitude.
f. The list is endless so why bother?

Let it play out and him sit if that is required. He is a good cost effective backup trade him on your terms not his.

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