Who is more important to Duke's success - Cook or Sulaimon?

Root of Quinn's problems: poor decision making and a hero complex [probability of correction: 25%] . Root of Sheed's problem: needed to embrace more flexible role[probability of correction: complete]

If Cook underperforms or gets hurt, I feel like we can easily plug Tyus Jones into the lineup and give him Cook's minutes. It'll be harder to replace Sulaimon's abilities w/ who we have on roster.