You don't know what the "whatever" is. Until you know that, you can't say they should or shouldn't do a deal.
And I'm pretty sure the Arizona coaching staff knows how good Breaston is or isn't, just because you don't doesn't mean they don't.
Plus, having a mal-content on the sidelines or in the lockeroom is a very dangerous game to play. TO literally destroyed the Eagles 2005 team because the Eagles forced him to "honor" his contract.
The Cards coaching staff's opinion of Breaston is irrelevant, because neither one of us knows what they think. But I can have my opinion, and that opinion is that Breaston hasn't proven anything, and sure hasn't proven that he is a capable replacement for Boldin. Every single player that has been franchised has been unhappy, for the most part, and there are players on every team that don't like thier deal. Boldin ws unhappy last year, played well, and came back quick from a tough injury. He appears to be a long, long way from TO.
Make no mistake, I think a trade is understandable. But lowering your trade demands, if that were actually the case, makes no sense.