Murray signed a new 12-month deal this sweek.
Asked whether he had under-used Murray, head coach Potter said: “Quite possibly. That's the beauty of hindsight, everyone is wise after the event.
“Hopefully the good thing about whatever decisions we've made is that we've now got a player who is very hungry, a player who hasn't got a lot of minutes in his legs up to this point and so can go in and hit the last 13 matches in a really good way.
“In my job you can't be in denial, if you have ever made a mistake or you could do something differently then you need to be able to see that, because that can help you improve and move forward.
“That's the approach I have always taken in my career."