Build around whoever you want, that doesn't mean you undervalue the assets you currently have. Smart is easily worth Randle OR Clarkson and easily NOT worth both of them.
Its not about what Marcus is worth. You dont have to trade based on fair market value ,which may be either Randle or JC. Marcus would fill a glaring weakness on this team, perimeter defense. His offense is good as well. I doubt that the Celtics will entertain any trade that doesnt involve both. Even then, the might simply decline. With the way how their team is structured, Marcus plays a vital role.
If you draft Fultz then Clarkson is redundant and Randle's strengths wont be utilized or even needed. Your offense will be Ingram,Russell and Fultz. All three can initiate the offense, run in transition and get fastbreak points. We'd need a stretch 4 who can set better screens and wont need the ball in his hands much. << Milsap and Nance
I like Randle but If Fultz is drafted we gotta cater the team to the three mentioned above. Marcus would bring a needed dimension on this team. Him and Ingram would make a solid perimeter combination on defense.