The BA writeup of last month does question the bat speed / power. Groshans has been projected defensively to 3B or corner OF, so he needs the power to come through.
Groshans stands out for his feel for hitting. He can square up good fastballs, adjust to offspeed pitches and has good strike-zone judgement with an approach that allows him to use the whole field. He tightened his swing by condensing some of the bigger movements he had previously, which helped him stay more under control rather than trying to cheat to get to more power. Figuring out how to tap back into more game power will be critical for Groshans, who probably ends up at third base. Some evaluators are skeptical that his bat speed and approach will ever result in big power numbers, while others think he could get to average or better power. Groshans has a plus arm and improved defensively in New Hampshire, but his quickness and range are better suited for third base, where he spent around one-third of his defensive innings in 2021.