I'm assuming none of these assets are tied up in the Rondo deal (Valentine or a future 2nd is what I've read so far).

Rondo replaces ~60% of what Rubio was bringing in theory: The 2nd unit ballhandler/let Darius play off ball, vet presence, defensive intensity. The extra 40% I'd align to his playmaking, scoring, mentorship, and ability to eat minutes on both the 1st and 2nd unit. If we're really committed to supplementing this core without sacrificing anything major of the future, I'd look at something like this.

The Spurs are in a transition period for sure, they're loaded with guards and aside from probably Murray and maybe White, aren't sure who's sticking around long term. Walker seems to be a shoe in to walk this summer in RFA and wouldn't mind an opportunity to improve his asking price while Young has shown the value he can bring to a reserve unit and helps bolster our depth at the big, which COVID has shown us is woefully insufficient. His shooting will also allow us to play Love more with the starters if need be to replace some of Rubio's playmaking.