I don't buy that insider scoop, at least I don't consider it fact. Like I doubt that Murray or even White and the others are truly off the table, but I could see if that were the smokescreen PATFO has put out. Remember, in 2011, the rumor was that the Spurs would trade Parker and make Hill the franchise PG.
I can't imagine the Spurs consider all three of White/Murray/DeRozan absolutely unmovable. I can buy that they don't think it's worth any of them to move up to 6. I can also buy that they wouldn't consummate a deal unless their guy fell anyway. But yeah, on the whole the info seems more like speculation than anything else.
But what if it's not? I don't like the idea of DeRozan playing the four full time. I think it's the best position for his skill-set, but it's not something his body can do for a full season, and it's way too exploitable if it's the main unit. Murray needs to get out of the SL if that's the case, because the main reason for putting DeMar at the four is to add a floor-spacer, and somehow the Spurs still end up with two non-shooters and one mediocre shooter with White and Walker having to take/sustain big steps forward. It feels like the team should want LMA more than ever if they are running with that unit, since Aldridge is more versatile Okongwu is an interesting player, but he seems more like a Poeltl upgrade than Aldridge replacement.