Giving some thought to the Brewers apparent preference to carry 8 relievers on the roster (actually 9 at the moment), I'm curious as to whether this was done more out of necessity (mediocre starters), or out of actual preference and design. As far as I know, and I admittedly haven't done much research on this, it's still the preference of most teams to carry 7 relievers and 5 bench players. I even recall a Brewer team under Yost that carried 6/6 for a time. If it's by design, you can understand the need for versatility, and why we feel no real need to give a player like Perez a permanent position. In my opinion, 8/4 actually makes a ton of sense for a variety of reasons. First of all, your bench players are playing pretty regularly, and not just rotting away on the bench without ABs. The versatility lets you plug and play guys just about anywhere, with the exception of Aguilar, but if you have 2 to 3 guys who can play anywhere, you still have the luxury of one 'bat only' guy. Secondly, and probably more importantly, you've got an extra guy in the pen to eat up innings throughout the year, easing the burden on both your rotation and pen. I recall a number of years watching a completely depleted pen just wear down in late months and struggle, and any method that helps keep them fresher and last longer in the season seems like a smart move to me. It also affords you to have a quicker hook with your starters which I think is something we're beginning to see more of around the league. Is it going to burn you at some point? Sure, you've got to be more frugal about how you make your substitutions and may run out at some point in an extra inning game, but that's better than running out of pitchers. I think that bigger bullpens and demand for more versatile benches may become the norm, not the exception around the league in the future. Just my $.02.