To my knowledge he has played as a central midfielder, a holding midfielder, a centre half and right back. Jack of all trades, but master of none.
Neil Lennon signed Derik and preferred him, initially, at the heart of his Bolton defence. Then, Phil Parkinson arrived and Derik struggled to get into the side and suffered because of his versatility.
Yesterday, against Walsall, Derik played in a new position - as a member of a back three. Alongside Mark Beevers and David Wheater, he was a calming and assured presence, and used his pace to great effect.
He linked well with Philip Morris on the right side, and offered up his own attacking threat on more than one occasion.
So whether this formation persists, I have no idea - but Derik looked at home there and given his ability, should remain.
Rochdale at home on Tuesday will be a tough test, but one I fancy Derik to be up to. Well played, sir.