You shouldn't want to keep most of them. Out of the young players on the team, it would be surprising for more than four of them to be on the team if they become a contender any time soon. I'm including guys like Wieskamp in that number too. The whole idea of having young players is that their salaries are artificially capped at the rookie scale. Once you start paying them market value, they lose a ton of their appeal. I'm not looking at "How can we keep Murray, Poeltl, White, Walker, Samanic, Johnson, Vassell, Jones, Primo and Wieskamp together" as anything close to desirable. Moving most of those guys for Simmons in lieu of picks makes way more sense, because you can replace their production with other young players or cheap signings. Investing too much into young players stalls a team's development out way more than keeping old vets.