Teams are intent on flushing Barnes pockets with money, because they believe he could step up into the 2nd/3rd role, but I'm not too sure about that. I think Barnes will have an impressive steady career, but I think ultimately, he's going to be relegated to the small ball 4, and his inconsistencies at offense/defense won't be such a red flag at the 3.
I saw that Barnes has been a consistent contributor in the Finals, and the playoffs. But another concerning thing that I've witnessed personally from the eye test, is Barnes inability to pass out of tough double teams, and making the right play at the right time. I think its also steadfast become another issue is Barnes weak ball handling, passing, and overall basketball IQ. He's so athletic, and so young, you just have to give him a lengthy and wealthy contract in hopes of aspirations of his ceiling reached, but its a very tough and vague road that you're going to be taking, if desperate teams even offer anywhere near 20-23 million.