This is/was a significant argument for Al leaving - "We need a point guard." Salty Dawg argued up a storm to show that the marginal increase you get from trading Al is not worth it and now that Harris is showing well, that conclusion is even more true. Certainly this same logic applies to the other positions as well. But really, who on the list of players is available or even desirable instead of Big Al? Name the all the players that have a skill as exceptional as Big Al's 'go to scoring' who is available for Trade? (Kobe, Lebron, etc are not available) Rondo and Pau are the only ones that i recall mentioned at trade time. Next, name up and coming players that could be had for Big Al? Would you trade Hayward, Kanter, Burks, Favors for Big Al today? Only if you have some form of redundancy that one is expendable. I don't know of any situations like that. Maybe some of you do.
I think KOC simply had no legit offers to consider at trade deadline. (And if you think it was because he was over-valuing big Al, suggest some value for him.)