Struggling right-hander Javier Vazquez and White Sox pitching coach Don Cooper made a few adjustments Tuesday during a bullpen session. What those adjustments were exactly, Cooper didn't want to say. But Cooper did say the Sox need to start seeing some improvement from Vazquez sooner than later, or the coaching staff might have to start talking about a Plan B. ''Javy is a guy that's been a starter his whole career. We still have a lot of belief in him. Brandon hasn't been discussed as of yet, and I hope it's not. With that being said, you always have to look ahead. Everyone is going to get more opportunities, but as things go, if things don't change for the better, making a change is something that could come into our thoughts.''