OHIO STATE
Early test: Sept. 17 at Oklahoma
Best case: Ohio State's recruiting prowess prevails again. Mike Weber proves a capable replacement for Ezekiel Elliott, and the offense hums with J.T. Barrett not having to look over his shoulder for Cardale Jones. Cretin-Derham Hall's Jashon Cornell and others become stars in a dream season reminiscent of 2014.
Worst case: Oklahoma exposes the revamped Buckeyes offensive line in Week 3. Barrett and Co. never quite click. After going 50-4 his first four years in Columbus, Meyer tires of the expectations and pressure, while Jim Harbaugh's star continues to rise at "that school up north."
MICHIGAN
Early test: Sept. 24 vs. Penn State
Best case: Michigan gets even stingier under new defensive coordinator Don Brown. LB Jabrill Peppers, CB Jourdan Lewis and DL Rashan Gary, the No. 1-rated recruit in the country, all thrive. Michigan survives at Michigan State (Oct. 29) and Ohio State (Nov. 26), going undefeated.
Worst case: Harbaugh is known as the QB Whisperer, but it's dangerous to assume he'll always have the same effect he did on Jake Rudock, Colin Kaepernick, Alex Smith, Andrew Luck and Josh Johnson. Houston transfer John O'Korn and sophomore Wilton Speight could falter, even with several talented receivers.
MICHIGAN STATE
Early test: Sept. 17 at Notre Dame