there's actually a way for the brewers to open with 15 position players if they plan to add brad boxberger to the bullpen. assume billy mckinney makes the club as the 14th position player. the brewers could place justin topa on the 10-day injured list, and recall luke maile to take his place (or add a player yet to be optioned, such as tyrone taylor). the brewers then opt to use other bullpen arms ahead of brad boxberger. when they decide that they need a fresh arm, they option the 15th position player (who then must remain down for at least 10 days), transfer topa to the 60-day injured list to open up a 40-man spot, and select the contract of boxberger. this could happen as soon as saturday before game two. as mentioned earlier, any player on a minor league contract isn't bound by a requisite stay of 10 days on optional assignment. i suggested luke maile because it gives the club a defensive replacement if daniel vogelbach, for example, pinch hits for one of catchers. the downside is that the 15th position player is then off-limits for 10 days after being optioned, unless replacing an injured player.