we don't have a talented roster in general.
Some of our most competitive games have been those in which the core group played (think: Kings, Minny, Mavs).
Your reasoning of not playing Russell because every mistake will be magnified on Byron for failing to develop him makes Byron seem far too sensitive. Not a fan of Byron's schemes, but I highly doubt he's that sensitive.
Veterans can help you win depending on the talent level. We do not have high-level veteran players.
If you were Byron, you'd start playing the rooks 35 mins?