ammending my earlier reply: the one thing about this trade that would raise a flag is that you are the commisioner. If you weren't, then it would be just people bitching about a trade they didn't like, but a commissioner must stay away from anything that could even seem to be questionable, or else it can be misconstrued as abuse of power (however harmless the intention). Otherwise you will lose players and/or your position as commisioner. I am commisioner of a league that is 10 years old, and believe me, we have had our controversies; This one would be argued for weeks, and at least cost us an owner. I'd re-consider.
it doesn't mean you can't make good trades, but if it is something that you feel the need to question and gain outside opinion, then imagine how those in your league feel.
The key to a winning season is focusing on one opponent at a time. Winning one week at a time. Never look back and never look ahead.