If it were up to me I would run it back with basically the same roster but would distribute the minutes differently. For example Poeltl would play like just 20 minutes per game and CMB around 28 minutes while being in the closing lineup. I would do something similar with RJ having him play around 25 minutes per game and Jakobe also around 25 minutes per game. I wouldn't make any major trade yet unless is an absolute 100% win for us. If possible i would try to give Grady to a team that can absorb his contract so we can resign Mamu and give Grady's minutes to our draft pick.
