Here is an excellent breakdown of the nature of the problem:
Details on the NFLPA’s monitoring of Redskins trades - Redskins Journal
Actually, the Redskins issue only arises IF Morris doesn't make the Rams roster, and even then it won't show up until the end of the season. The Rams, however, certainly will be checked at the end of the season since we cut Hall Davis. I have a hard time believing this was done solely to keep $300K out of the rookie pot, I simply think BA was trying to get a pick for a guy we knew we were cutting. Simple as that, and every other intention is simply a spin put on their straightforward move by groups with agendas.