Should We Buy A New Goalkeeper?

[GP9]

First goal was soft. Don't think he's awful, just very "meh". Would be happy with him as the backup keeper, but would like better as our number 1 each week.

Week after week, I hope that he is going to prove me wrong, come out, claim a few crosses early doors and relieve pressure on the defence, especially against big sides...but he never does. He is massive, yet always stays rooted to his line. He made a big save just after we went 4-2 up today, but I would expect any half-decent keeper to do better on their first goal. 
To be fair, I think most decent Champ sides think they need a better keeper than they have at the moment. Having a Butland-type at this level is very much the exception rather than the norm.