I have neither heard of Belfodil or seen him play but having looked him up, his goal scoring record is pretty rubbish and he has never spent more than a season at a club. Also didn't get called up to the Algeria squad for the AFCON.
I mean £8.5m isn't a huge amount anymore but still...
we don't need a prolific goal-scorer, we already have one.
We need players around him who will help him out.