Phil inherited a team that was old, with 2 of the next 3 years draft picks already traded. Melo was becoming a free agent and Dolan had to keep him. Dolan can't have a Knick team without a big name/star on it.
Melo re-signs. That was a big must from Dolan's perspective.
He has replaced Chandler with Lopez - clearly if you watch the two today you rather have Lopez.
He has replaced Bargnani with Porzingis - again clear massive upgrade.
Melo is still with us, though Phil inherited a Melo now on physical decline even though he has become a better leader.
He has replaced JR Smith with Afflalo. I am not Affalo's biggest fan, but he fits within a team concept more. However this is clearly a position we are looking to upgrade.
He has replaced Felton with Calderon. This is essentially a wash. Neither guy is any good anymore, but Calderon is a great teammate and passer, who has helped NY become a team that plays unselfishly. He's a mentor for younger players. Chris Bosh and DeMar DeRozan both sad as much.
In other moves, Galloway is there instead of Shump. I really don't see how anyone can complain about Galloway. Grant instead of Hardaway. So far this move hasn't shown it's value, but lets give it a year.
We're the same team we were when Phil inherited them 2 years ago in regards to being a team that's neither good or really bad, and likely to finish in the 30's in win total. However the room to grow with this group is far more, and then there's capspace. We have legitimate young players in Porzingis, Galloway, Grant, Williams all of whom can find their role on this team and come back stronger next year.
Right now I'd agree Phil's work has been average. If he is able to replace Afflalo and Calderon, it will go a long way. If he can do for the backcourt, what he did for the team's front court, within the next year, I think it'll be a really good job he's done in re-building the team. However until he upgrades the backcourt the same way he did the front court, I won't say he's done enough. We need 2 more moves, and Phil needs to get it done within a period that Melo is still at an all-star level. Doing it within this offseason would be best but likely we're looking at 1 major signing at best.