Jose Baxter has made Simpson's favoured number 10 role his own with a string a superb displays since moving to Boundary Park in the summer.
Yet the former Coventry and Huddersfield man remains a regular starter for Paul Dickov's side, often deployed in central midfield while also plugging gaps on the wings and leading the line.
"I think my best position is that number 10 role - the link between the forward line and midfield," Simpson told Press Association Sport. "I've had a couple of knee injuries this year and Jose Baxter's been doing really well in that position.
"So I've found myself in central midfield more often than not and I actually played left midfield the other week.
"If I don't play as the number 10 I would prefer to be up front as the one above the number 10 - I feel that best suits my game apart from being in that role.
"But I'm more than happy to play in the centre of midfield. I started out as a youngster as a midfielder when I was at Norwich all those years ago.
"It's matter of wherever the manager wants to play me really. My versatility has sometimes been my downfall in the fact that a regular starting place has never been mine because as soon as there's an injury I'm shoved into a different position.
"But I've always looked at it as a positive. The manager can trust me to play in a number of different positions, which other players struggle to do."
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