MILWAUKEE -- For all its consistency this season, the Milwaukee Brewers' bullpen certainly has seen its fair share of change.The revolving door spun again Wednesday, as Milwaukee optioned out right-hander David Goforth, activated left-hander Will Smith from the disabled list; then put right-hander Michael Blazek on the 15-day DL and selected the contract of right-hander Jacob Barnes from Triple-A Colorado.On top of all those moves, the Brewers also added right-hander Neil Ramirez, who had been claimed off waivers from the Cubs earlier in the week, leaving eight arms out in the bullpen."It's never ideal, but sometimes it's necessary, and it can be helpful," manager Craig Counsell said. "When you're in a normal, functioning state, it's probably best to have seven. But there are times when eight really helps also and gets you through some periods."Smith was originally projected to return Thursday, when the Brewers opened a series in Philadelphia. But they moved that decision up one day after Goforth was clobbered for four runs in 1/3 of an inning.The move on Blazek was somewhat of a surprise. Counsell said Blazek reported discomfort in the shoulder after his last outing and, after throwing a bullpen session Wednesday, decided to rest him for precautionary reasons."I think we want to be on the safe side with him," Counsell said. "And give him a full two weeks to feel like can get back out there and pitch without any restriction."In summoning Barnes, Milwaukee is getting a rare pitcher who has actually thrived in the challenging environment of Colorado Springs. The team's 14th-round selection in the 2011 draft, Barnes was 2-1 with a 1.71 ERA in 17 appearances this season."He's pitching very well," Counsell said. "He's earned this opportunity."