Lets be honest, Spiller has been inconsistent at best, he has had one good game (Oakland) in his brief career . . . I want him to be good, but he's very fortunate to have Fred Jackson in front of him. Freddy has covered for how bad (inconsistent) Spiller has been. If Jackson doesn't keep getting better and better with age, there would be a lot of angst toward Spiller on this board.
I've said it before, and I'll say it again, he is about one level ahead of Aaron Maybin so far in his career development (that is, when Maybin was at this same time in his short career). Maybin received our venom because he never produced at a position and at a time when the franchise needed him to; and because everyone else was bad, his lack of contribution was just accentuated by that reality--we needed him and got little to nothing.
My point: So far Jackson has masked and covered for Spiller--granted, he has given something, certainly more than Maybin ever did, but not much, not what he should have by now.
Trade him? NO!
But its getting time for him to contribute in a more meaningful and consistent way.