Did Harbaugh and offensive staff crawl into a late game shell at Iowa and OSU or did UM not have a strong enough o-line to execute critical plays when needed? I get this line was good to very good and several members will play on Sundays. That said, in both losses (even at MSU) it seemed UM couldn't get those tough 3 to 4 yard rushing plays when needed. Defenses knew UM was running and stuffed them. Were these stops due to lackluster play calling or the o-line not being able to impose its will when needed? Thanks for any light shed on the subject.