He believes that by adding to the squad during the summer, his side can make a better start to next year's campaign - and push on from there.
"We are a group that didn't make a very good start and that probably cost us the chance to arrive in [the top four]," said the 40-year-old. "We'll keep fighting and keep working to finish as high as we can.
"For us to go to the next level, we know we need to add more quality to the group, but I genuinely think that next season we'll have a much better chance because we'll be in a better starting position.
"We'll add quality to the group in the summer and that will give us a real chance of achieving next year."