We can't live in the past.
It's like trying to make arguments about Kawhi considering where he was drafted and saying he shouldn't get max money because he wasn't a lottery pick.
At this point in his career, Frank's draft position should have no bearing on whether he could play a role in an efficient capacity on this team. He has certain qualities that allow him to be a cog in a good team; as shown in FIBA.
What is Frank? He's NOT a lottery pick. That is a dated classification much like Kawhi's draft position or Jimmy Butler's...or Markelle Fultz. In 2019, these players are the collection of skills and flaws that they've exhibited. Frank has flaws and he has strengths. Dennis Rodman had flaws and was one of the most one dimensional players in the game, yet, can be argued as one of the most GOAT X-factor players of all time. A good coach can find a good place for a player with some good qualities.
A GREAT coach can find a GREAT place for a player with some GREAT qualities. It's all about planning.
Instead of arguing ad nauseam about why you can resent Frank for not living up to his draft position, a Knick fan should be arguing vehemently about putting Frank in the BEST position for him to contribute, whether that be a 6th man, 4t quarter ball stopper, starting 1, etc. He's a Knick...let's have REAL convo about how BEST to maximize his skillset. And honestly, if you can really fix your mouth to say "HE HAS NO GOOD SKILLS", you just are bizarrely petty or don't really know team basketball.