He has scored just 4 goals this season in a team that is full of goals. I have no idea how good he is but I know the only goal he has scored since August was against us. I'd be pretty underwhelmed if he joined us tbh.
They are not really full of goals though are they? Middlesbrough have 37 goals this season, six teams have scored more than them. Their top scorer in the league is Stuani, with 6, same as Hemed. So maybe you do not actually need a 20 goal a season striker to get promoted from this division.