He did defend 3's pretty well last year. The idea would be what 4 is going to defend him on the other end? Defensively more than a few times players thought they could back him down and he did well sticking them. He played a bit at the 4 last year and it was what it was. The Kings could have gone a more traditional route this summer, but they didn't. In fact, they went even further and deeper into the imbalance the roster presented on paper last season and haven't actually moved any of these pieces like Buddy or Bagley who have been repeatedly dangled if reports are true. They have what they have and now they either go all the way with it or watch the contracts perceived as not too bad become albatrosses.
In this case I think they are more damned if they don't then if they do. If Buddy gets enough minutes to maintain some value and they see him as a full time SG then that means Haliburton and Mitchell are deeper rotation pieces. Attempts to play them all at the SG spot means they all dip since they are now a platoon. And Walton has shown a propensity to play some guys for a few games then switch off. He will lose his locker room so quick his head will spin if he does. If they attempt to play traditional setups like Walton prefers with Fox, Buddy, Barnes, Bagley, and Holmes then Mitchell and Haliburton are fighting eachother for bench minutes. I feel the traditional lineup will be the starting lineup come opening night if Waltons habit of sticking with what he knows continues.