refusing to shoot 3s for ben is an overstated issue. the practical effect of him refusing to shoot is that teams just sag off of him. unless he becomes a proficient shooter, teams are going to continue to sag like they do to giannis. if you sag off of either though, you give them a running head start at you and both can finish around the rim. I'd rather ben with a small ball center/stretch 5 guy and shooters around.
i'd basically try and recreate what the rockets are doing with russ. the big difference is simmons is 6'9 and can help in the rim protection department. add a stretch big, some shooters, and flourish. instead, elton brand decided to keep embiid, and double down by bringing on horford.