You still can't add transfers mid-season except for some pretty crazy exceptions (I can't think of any, but you never know), so I'm not sure what nil has to do with improving this team, this year.
As you said, Groce has been very active in the portal, so again, I'm not sure why you think the Zips aren't doing their best to get the best players they can into the team. It just didn't line up right for us to get a top tier big this past off season, you can say that it was a problem, and I would have liked to see another post that as well, but I am happy with the additions we made instead.