Moose is putting up career best numbers this year (or pretty close), so I think there is probably a little regression due for both of them in opposite directions. Shaw is coming off a season where, if he had regular BABIP, he probably would've gotten MVP votes, and a very strong year before that too, so it's hard to cut bait after only a month or so. Shaw's kinda basic peripherals (hard hit %, ground:fly ratio) look pretty much in keeping with previous, more successful years. Contact seems to be the issue, as his K-rate has skyrocketed this year which is really concerning. Given the realities of Major League contracts, I'd guess that Shaw has another 3-4 weeks to figure it out before the Brewers just can't keep Hiura down any longer. If Shaw is still struggling THIS much by then, then some infield shuffling might be in order (Moose to 3B full time, Hiura to 2B). For now, I'm not ready to cut bait on one of our most reliable bats from the past two seasons when he's only 29 and still controllable.