Bennett is still finding his feet defensively and apologised on Twitter for his performance in the Capital One Cup semi-final first leg defeat at Bradford.
"The main thing for me is defending and I'm working all the time to improve my game," said Bennett.
"I also played left midfield a couple of times for Middlesbrough but I'm not really used to it.
"I find it much harder than left-back, even though I like to get forward whenever I can. I think that's one of my best attributes.
"I like to be involved as much as possible and get some crosses in."