RE: Mane. We lack pace, which he brings, and we lack goals from behind the front man, which he brings.
Sure, his ratio is probably 1 in 3, but if he was consistent he'd be costing more than £30m in this current market. As it is, he's streaky and blows hot and cold, but he has qualities we are missing. He offers directness, width, pace and strength. He offers goals, too.
Klopp has a penchant for improving players - and if Klopp can boost Mane into scoring 1 in 2, or 1 in 2.5, that'll look like a decent price.