I totally agree with the Klassen shout, he's a player who's adapt at playing quick football, is a quick thinker, and just generalizing here but coming from Ajax he'd fit the mold of that support player.
I'll happily agree we need someone to hold the ball up, but just like Mr Goat using Man United as an example, I'd say look at Arsenal and the gulf between the teams midfielders is clearly obvious. Even using Goats United example the gulf is clear, but obviously Arsenal is more apt given we were looking at Giroud. Understandably we've only had DCL as something to go off, and its not criticism o his, but it didn't work as well as people are making out, we created one chance against 10 men.
I'd be persuaded to agree a targetman would/could fix the midfield problems, but I don't see the defense being able to press higher as we'd still lack pace on the turn.
Again you are right to say a targetman is something that could push us upfielld, but having one over the other would leave us with limitations, and likely caught between pressing high because we have an outlet, but getting caught on the counter/exposed at the back.