I am sorry that I cannot reveal my sources...I was asked to refrain from doing so because one of the sources is related to a player agent (hereby unnamed).
When I heard these rumors, I too doubted the veracity of them...and, in part, I still do. But the inside specifics I heard (involving Todd Haley's input and his connection to Patrick Crayton, for example) made me think these rumors may have some merit to them.
There's another thing I haven't mentioned yet about the conversation I had...the person told me that the word is that Ken Whisenhunt is privately furious at both players (especially since the Cardinals have dealt in good faith with both players on contracts before) and honestly believes the team can win without them.
That said, I don't think the Cards are just going to trade them for trading sake...there are some puzzle pieces they are still searching for, like a speed back, a speed WR and another offensive lineman...which is why some of the names that were mentioned are intriguing.
I think Whiz understands very clearly that this year is very crucial from the standpoint that if he and his staff are going to take the Cardinals over the hump, they need to have all the players on board and fully committed. Whiz knows that if the team regresses this year as it has in past years following rare .500 seasons, it will be all the more harder to change the pattern of losing in Arizona for good.
What makes me very optimistic is how consistently competitive the Cardinals were last year, close game after close game, despite the wave of injuries the team incurred (to several key players, no less...Okeafor, Berry, Dansby, Wilson, Green, Leinart, Fitz, Q, Pope, Levi, AJ, etc.). For a first year head coach and staff to show such positives in terms of preparation, building depth and gutsy playcalling, was all the more impressive.