Right now, Cleveland is carrying eight relievers due to the team's recent rotation issues.
"There's a chance that, once we go through this series, we make changes," Acta said on Monday. "It all depends on the day-to-day [results]. This series could change things up, depending on how our bullpen is used."
The Indians shifted to an eight-man bullpen in the midst of the club's 11-game losing streak that ran from July 27-Aug. 7. Entering Monday's game against the Mariners, Cleveland was on a five-game losing streak that has included more rotation problems.
Through six games on the current nine-game trip through Anaheim, Oakland and Seattle, Indians starters have combined to go 1-4 with a 6.61 ERA. Dating back to July 27, Cleveland's rotation has gone 4-14 with a 7.73 ERA, which is the highest ERA in the Majors over that time period.
The 113 innings logged by Tribe starters since July 27 are the fewest in the American League over that span. As a result, Cleveland's bullpen has piled up 75 1/3 innings in that same stretch, representing the third-highest total in the Majors.
"It goes all the way back to the first losing streak," Acta said of his eight-man bullpen. "The guys were overworked because of the lack of innings from the starters. It's something that, a lot of times, people don't understand that it's not corrected overnight or in one day. It takes a toll."