I wasn't so happy that we paid so much for him, but aside from that I'm fairly satisfied with him.
He is what he is. He works hard, he keeps defenses honest, he's willing to defend, he seems like a nice guy who gets along with teammates and represents the club well. Always reliable. Better header of the ball than I would have thought. He's not a great finisher or dribbler, but he does make good runs, and between that and just sheer effort he could probably knock in 8-10 in a season if we let him start every game.
But he won't start that many, or at least I hope he doesn't. But at any rate, I'm pretty satisifed with him as a frequent sub/sometime starter/injury depth.
I think Mane is more talented, but I'm still not convinced if he'll be consistent enough and if he does put it together, I feel like he will leave.
So I think winger/striker is an area that needs to be strengthened by bringing in a first XI kind of player. But I wouldn't want to get rid of Long. He isn't great but he's certainly okay and that is quite useful. Especially if we have European competition next year.