Yeah the lazy passes that get picked off look like lack of focus.
But I think theres another element at play here as well: when he gets stripped while ballhandling its not a lack of focus so much as overestimating his handle. He handles well " for a big guy" but he is by no stretch a great ballhandler ala small quick point guards. If he's isolated 1 on 1 with a guy his size, he has the handle to get all the way to the rack.
Where he gets in trouble is in traffic- if there are smaller quicker guards lurking nearby, he's gonna get his pocket picked and his feelings hurt. Court awareness and awareness of your own capabilites.
And it seems to happen at the worst possible times. But then he'll turn around and have a great game next night.