yeah and exactly how many guys of that mold exist and are available? if its so easy, lebron would have gotten a few of those by now, but he literally has never been able to get one, because they are hard to come across. this a large reason of why the ring argument is so hated, because not many players have gotten as fortunate of situations as mike, bird, magic, kobe and steph. all of them either started in situations where basically everything they needed was there, or the solutions were available and taken. unfortunately for a guy like luka, he stepped into a situation where the drafting and contract management had been pathetic for years before him, he started winning quickly resulting in draft picks being late and unreliable, and the team screwed up horribly in how they wasted so many resources in rebuilding the roster after getting him.
keep in mind this is a team that turned:
harrison barnes, wesley matthews, dennis smith, deandre jordan, 3 first rounders, 3 second rounders and being around $5-7M over the cap
into
spencer dinwiddie, davis bertans, josh green (instead of desmond bane), tyrell terry (out of the league), and being $30m over the cap next year
anyways, point is that its easy to say "oh this is exactly what they need, they should go and get it!" but if its not a possibility, then other directions have to be explored.