Well it’s an interesting question, and the answer might very well be both. Early in the season when there were a bunch of off days they stuck with a 5-man rotation. Then they inserted the 6th starter when there were longer stretches without off days. Most of the references I can find that have been made to the reasoning mention the “extra day of rest”, but that’s not to say the lessened season workload isn’t also a big part of the equation. A random collection of quotes from this year… Link: Craig Counsell said Eric Lauer earned another start after five scoreless innings Thursday. He prefers to keep starters on five days rest for the long term, but when circumstances require they will adjust. Link: So far, things have gone according to plan. Thanks to a bevy of off-days over the first few weeks of the season, Counsell has been able to give each of his starters an extra day of rest for all but one turn through the rotation. Link: Brewers president of baseball operations David Stearns said the plan to continue giving extra rest was discussed before setting up the starters for the Cubs series and it was agreed to stick with a formula that has worked well. “We talked about it both ways,” he said. “This is the way we’ve rolled with it so far. It’s worked so far. I would imagine we’ll get to a point in the season where we’ll ask a little more of our starters. We’re not at that point right now. Asked if there was debate about using Burnes against the Cubs, Stearns said, “Sure. We talked about it as we saw this coming after Brett (Anderson) went down (with a knee injury). We started our discussion, but this is what makes sense. This is the right thing to do. And it will benefit us in the long run. “All of these guys are going to surpass any sort of incremental innings increase. We are cognizant of that. I wish I could say there was great science behind all of these decisions. But a lot of these decisions are based on a combination of what we understand from a medical perspective and just subjective judgment. Link: The Brewers remain committed to keeping their starters on five days' rest.