I think at this point in the season, considering the locker room isn't a huge mess, there's not a lot of reason to give DC the gig now.
The season is basically over and he wouldn't have much time to really put his mark on things, at least not like he would in an ideal scenario (fresh season).
Players could also be moving out here pretty soon.
I'd say let Monte do whatever with player personnel this season in accordance with what fits his vision, then hire the right guy that also aligns with his vision in the off-season.