Well, he easily outplayed the still-recovering Cisco last year, so there is that. Maybe Cisco will be the one playing better this year, but I'm not going to assume that to be the case just because it'd be handy if he did.
Besides, even if Cisco does start, it's not as if we get some guarantee that 6'1" PGs are all going to shift to trying to guard Tyreke. On nine nights out of ten, Cisco is less of an offensive threat than Tyreke, and it's not like the league's coaches don't know that. Right now, that whole notion is just an untested idea, which may or may not pan out.