Utah running back Devontae Booker (23) during the first half of an NCAA college football game against Arizona, Saturday, Nov. 14, 2015, in Tucson, Ariz.
Utah running back Devontae Booker (23) during the first half of an NCAA college football game against Arizona, Saturday, Nov. 14, 2015, in Tucson, Ariz. Rick Scuteri AP
Utah running back Devontae Booker (23) during the first half of an NCAA college football game against Arizona, Saturday, Nov. 14, 2015, in Tucson, Ariz. Rick Scuteri AP
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49ers need running backs to join Carlos Hyde in up-tempo attack

February 16, 2016 07:38 AM