Wolves defender Ronald Zubar hopes manager Mick McCarthy can add to the squad this summer.
The versatile defender saw his 2010/11 campaign cut short by a back problem, with the complaint forcing him under the knife back in March.
He said: "I think we'll be stronger next year and we just need to make sure we play every game like lions and with the right determination.
"We did make a lot of mistakes this year which we didn't do in the previous seasons. We have to cut those out and keep our minds focused on getting results and being stronger.
"In the Premier League you have to get stronger every year or you don't survive."