There seemed to be a brief momentary spike In Frank's performance right after a PG was added to the roster. It briefly got his attention.
Remember the first time Burke came off the floor, after putting up good numbers in short order. They cut to the bench at the first stoppage in play, and everyone was off the bench cheering, lots of smiles, except for Frank who just stood there looking at Burke with a scowl on his face.
I believe these examples show that Frank has a competitive streak in him that has yet to be tapped into, from what we've seen on the court. Frank's on court performance can be best described as passive, IMO.
How do the Knicks tap into that competitive streak? Do something that will get Frank's attention like stop giving him minutes, if he isnt aggressive.
I keep hearing "he's only 19". Well, this 19 year old sees that his minutes are unaffected by his play. The incentive to do what is neccessary to grow as a player isnt there. Let Frank watch Burke and Mudiay from the bench, and see how he responds. The other way hasnt worked, if anything its made Frank complacent. Which you might expect from a 19 year old.