A few things. It might not have been clear as day in fall camp last season. Baxter had the size as a true freshman, but his body clearly wasn't up to the rigors of being RB1 whereas Brooks had several years baking in the oven and some live snaps under his belt, even if they were in garbage time. Personally, I was always high on Brooks' potential. But I always thought he'd shine outside more than the inside. He really developed.
The difference this year is that Baxter has a year in the oven and should be poised to take a significant step forward if his body holds up. Will he? We'll see. But I wouldn't assume Baxter will play second fiddle to Blue just yet. Blue will surely bust explosive plays. He's motivated and Sark has all the off-season to dial up and fine tune play calls featuring his skill set. That and if the Kool-Aid regarding the OL is bonafide, there will be big holes to exploit.