Would DC have really made much difference?
They already were overloaded with 2s and 3s.
They got rid of him (probably the wrong guy to get rid of) and added a Point Guard in Patty.
They had Corletto, Lewis, Ubaka, Dorsey, Dillon, Walker, Greer and Rush who are all 2s or 3s.
Ubaka is arguably a point guard, but really plays more as a 2.
When they lost Patty, they had Ubaka at the point and noone really else. So by cutting Ubaka and bringing in an actual point guard (and McDonald who's a point guard), they kind of helped their team balance. Still overloaded at 2 and 3, but not as much as they once were.
They really were set to fail from the start. Patty helped a lot for a while, but that was never going to last. You can't fill a team with the same types of players and ignore other areas.
If Myron is the player they need at the point, if Burston can stay healthy, what they really need to do to salvage the season is replace Dorsey with a 4. Probably won't happen, but it's what they need to do to actually challenge. If Williamson is still around waiting for a possible Sixers gig next year, he would be a good fit for them. Also would give us a look at him to assess whether we want him. This team has enough talent, just the talent is too similar.