yeah, definitely different types of forwards
and by "more complete," I want to stress, I don't necessarily mean "better." There's definitely more to Darren's game than often met the eye - He was fast, but so are a lot of other guys. I feel his movement, on top of being quick, was always pretty intelligent as well. He stretched a lot of defenders in his time here by moving around, checking back occasionally, etc.
But I think, in terms of on-ball ability, Koroma has the potential to do things Darren probably wasn't technically proficient enough to pull off