There may be better players at the club with regards to 'overall' technical and footballing ability, but that doesn't mean Naismith isn't useful.
Firstly there are those key mental attributes he posses: tenacious; determined; a footballing mind. These clearly help his play in many ways.
He shouldn't win so many headers? But he does. He shouldn't find the space he often gets on the pitch. Yet again though, he does.
When he is through on goal I'm normally pretty confident that he'll score, often with a pretty lovely finish: placed or brushed into the net.
Should he be starting all the time? No, as sometimes we need to utilise pace and width, but in games like yesterday he can often shine.
A good squad player who I'm happy to have!