To be fair unless you do not offer me a draft pick with your player B which is not a as good as my player A, I would not accept your offer.
Basically i agree if both GMs have exactly the same view about players. BUT what i really meant was that you can look at Player A and different GMs will have different opinions and see different values in this player - and that is because the software uses effects we cannot know in advance. we have excellent players with low-ratings and high-profile players that stink.
Excample season#1 : I traded HUGE for QB Dave Barr (best QB-ratings!) - and he played mediocre. I sold him for unknown Josh LaRocca (lower ratings than Barr) and LaRocca dominated the league.
And if all GMs had the same knowledge about the software AND if the software would give us NO surprises EVERY GM would think the same about Player A. But in fact we are lucky that the software does not really follow its own rules (see: SACs Center!) - that leaves enough space for interpretation and so trading is fun.
In other words:
For YOU i would have to add a pick to player B in order to get player A. For ME i might think: Well, actually i would have to ask for an additional pick with player A - otherwise i would not let B got to Niki as B is better than A.
Case closed.
the only thing that i want is that trading is still fun and an individual act. otherwise we could find a software like in the Madden-software where the program calculates if a trade is favourable for you or not. that is bullshit und would end trading in the FWL.