Suppose a voodoo witch doctor came to you with an offer: you can give Kobe and Nash their 2006 physical abilities back, and they will maintain them and just age normally again. So 2013 Kobe would play like a 28 year old, 2014 Kobe like a 29 year old, etc. Same for Nash.
The price is a testicle. If you want both players rejuvenated, the operation is done without anesthesia. You can do it with anesthesia, but then you can only have young Kobe or young Nash, but not both. Do you do it?
I figure why not, you've got two. I'd uni-ball it up to see Peak Mamba, Peak Nash, Dwight, and old Pau, plus the team would win the next 5-6 titles.