I'd take Frank Mason over IT even today.
IT just doesn't have the right mentality for being a team player unless he's the #1. Good for him that he found a team where he can be that. But I don't want to hitch my wagon to IT, and you have to, if he's on your team. Your entire offense has to be geared around him.
Oh, and FM3 looks like a better 3pt shooter. Like, potential to shoot 45% type shooter. For a 6th man PG type, that is exactly the skill you want, and pairs nicely with Fox, for a potential future uber scoring small ball backcourt.
Did we seriously go from almost no long term solution at PG to the best PG depth in the league in one offseason? Is that what I'm seeing here??!??!