My girlfriend put it perfectly, Tim Kaine is unsalted butter to Hillary's Wonder Bread.
That said, the only other comment I have from the other thread is that if what Zeleny said is true and the campaign seriously thinks Tim Kaine is what the future of the Democratic Party looks like, I'm seriously wondering where the campaign's been the past two years.
He's a white male. You need a white male if a minority will be on the Democratic Party ticket in the 2020s. You can't have an all black or all Latino Democratic ticket.