This trade is ridiculously lopsided. If its changed to just Allen for Taylor in a 1 for 1 then its fine.
But first RG3 still needs to drop $800k in salary to get under the cap. I'd suggest you drop Jimmy Clausen if you're not gonna use him anyway since he has a contract over $1mill and only rated 69 OVR. After that then the trade with the Bucs that was already agreed to and approved has to be accepted on XFN.
Until all of that happens no other Steelers trades can be approved.