^ This.
The Winston thing looks even worse now. Rick was able to trade a broke down part-cyborg MLB for a 4th and change, but couldn't get anything for a RT that started 60 straight games. Seriously? I mean wtf? If you're willing to ship Ryans off for a 4th, you damn well better be capable of shipping off Winston for a pick. Even if it's just a 6th. I don't think we were that bad off that we had to cut him immediately at the time. Seems like a missed opportunity to get another 6th at the very least. He was a valuable asset and the market proved that.
As per the contracts, the reason the Eagles are willing to take the "risk" of Ryans' contract is that none of his salary is guaranteed on their side. The guarantees on his deal have already been paid out in salary and signing bonus. The cap hit the Texans have this year is the remainder of his signing bonus. The Eagles likely will be able to cut him before the beginning of any future season without penalty. So if he doesn't work out for them next year, they can drop him. Good risk/reward opportunity for them.
I'm sorry to see Demeco go and I will miss him, but honestly, Philadelphia is a better situation for him. He will be more effective in a 4-3 defense than a 3-4, and will prove his worth there. Even if he ends up being a pro-bowler next year, I won't be able to say that he would have done as well in our system. It's just a matter of matching strengths to system and unfortunately our new system doesn't suit him as well.
Good luck Demeco, I hope we see you in February!