D'Arnaud is hitting .395 with five HR and 10 RBI in 38 at-bats for Las Vegas since being demoted. He was hitting .180 with the Mets.
So far in Triple-A, d'Arnaud has demonstrated a consistent approach and he's keeping his back foot closer to the plate, which allows him to better reach outside pitches, a source told reporter Mike Puma (NY Post, June 17).
If D'Arnaud is promoted after June 27 (20 days after he was demoted) he will be out of minor league options, i.e., able to be sent to the minors without having to first pass through waivers. If he's promoted before June 27, he will retain the option, meaning he can be sent down again.
Terry Collins told reporters Tuesday that he sent a confidant to watch d'Arnaud's Triple-A at bats to see if he's ready for a return to the big leagues.
Collins essentially said he doesn't trust Pacific Coast League numbers, because it's notorious for being a hitter's league:
"No disrespect to the league, to the ballparks, to the players that are there," he said. However, "We have seen that at this level there's a fairly good jump. All you want to hear is about the consistency. Not that he went down and had at-bats against a club whose pitching isn't that good maybe.