Teams are reshaping their rosters and rotations as the season quickly marches closer to the midway point.

Before the midweek slate of games on Wednesday, teams had already played in 20 percent of their 60 regular-season contests. In that dirty dozen of competition, observers saw the dominance of four title-chasing teams at the top — the Tochigi Brex, Chiba Jets Funabashi, Ryukyu Golden Kings and Nagoya Diamond Dolphins, all of whom had 10 wins and two defeats through Sunday.

And now it’s time for adjustments: to maintain top form or seek a way make subtle improvements that could be the difference between a win or a loss — and a realistic shot at playoff participation.