First off. Clady (if anyone) is the lynchpin of this offense.
I agree that this story doesn't paint a positive picture regarding the chances of B.Marsh holding out/asking for trade/being unhappy. I can see his role in the new scheme not being to his liking, and Mc.D's not likely to mince words about that.
Ultimately though. Marshal is looking at his stats, then looking at the contracts of other wideouts around the league with similar stats.
Just like with Weigman, I can totally understand why B.Marsh is looking to get paid now. These guys must feel the stress when it comes to a business that can chew you up and spit you out as quickly as look at you. They must feel like they may not (in this kind of situation) get another shot at a big payday.
A BIG pro sports contract will grant the kind of wealth that can last generations. That's a lot to consider. Must feel like a HUGE responsibility (to some)