I agree that having players set the culture is important, but urshela is definitely expendable out of those three guys (and hopefully part of a trade to help improve the pitching staff).
He is an average fielder at best (definitely not gold glove) and his defensive metrics put him as one of the worst third baseman in the league (-3 OOA). Eye test he is also not gold glove (he is not even close to a top 10 by eye test). His bat is league average right now, but league average bat and below average fielding makes you expendable, especially at 3rd where you want a good bat.
I’m glad the culture has changed and he has been a part, but his days are numbered on this team (he is also 30 years old with one year left of arb). I think he can stick around in a role maybe until the end of next season possibly, but that’s only if one of the Prospects doesn’t play him out of the lineup or off the team entirely first.