I must be.
I watched plenty of him for Ajax and he hasn't disappointed me yet at Everton.
It'll take him time but he's a hard runner, he presses from the front (look at our goals in the EL qualifiers) and has still created more chances for us this season than anyone else!
On your second point - the bit in bold - I agree entirely. They all can't play together, unfortunately, or at least not in a front unit.
I'd like to see Gylfi rested Wednesday, and Rooney to start up top with Klaassen behind, with two wingers (or a winger and DCL) offering the support.
That's very similar to how we set-up at home against Hajduk, which was our most complete performance by far this season, as the team has balance.