In a style of play where his only expectation is to keep the play in front of him, hold his shape and break up play and lump the ball on to forwards to do the actual creative work (Cooperball) four years ago he could do a job.
Fast forward four years and hes worked under two managers who obsessed over possession above all else, this is in part responsible for him becoming the ultra safe 6 yard back pass specialist he has become. At times Williams played him in an attacking role but he would look utterly lost, just traipsing around the pitch for about 70-75 minutes before being replaced by someone who would make more impact in 15 minutes than he did in 75.
The problem that Fulton has is that he is unable to channel his aggression in a positive way, you could compare him to Franco and Franco is by far the more aggressive player off the ball, but he gives away a fraction of the fouls and yellow cards that Fulton does.
And on the ball he offers far more industry, willingness to receive the ball and ability to distribute the ball to attacking areas of the pitch. Literally the only benefit Fulton offers compared to Franco is that we can't play two Francos.