After the club narrowly avoided relegation, Wilson promised to shake things up in his first close season at the helm in an attempt to put the Robins on the right track.
Thirteen players were released on Tuesday and just four offered new deals, and Wilson is keen to stress he is on the lookout for quality rather than quantity.
"It's a tough time of year, not only from the players' side but from the staff's side as well, but unfortunately decisions have to be made, you can't shirk the responsibility," he told the club's official website.
"It's an opportunity from our point of view to move forward and get the numbers down and bring a little bit more quality in if we can. That's a challenge in itself but we're hopeful we can do that.
"It's hopefully a new start if you like and I'd like to think we can get the right players and the right blend and the right quality that will help us have a better season."