He was n't great from the field last year -- 37.5 percent overall and 30.7 percent from the perimeter , although those numbers were better during the playoffs -- and he 's still learning the nuances of NBA defense .
Now , Johnson is n't perfect .
Johnson was n't great from the field last year -- 37.5 percent overall and 30.7 percent from the perimeter , although those numbers were better during the playoffs -- and Johnson 's still learning the nuances of NBA defense .
Now , Johnson is n't perfect .