If Frank Gore signs elsewhere, who will replace him as the 49ers’ mid-sized running back?
Trent Baalke seems to be searching for a specific type of running back to replace Frank Gore if he signs with another team. Baalke just recently signed Rugby League star Jarryd Hayne, and, according to Jason Cole, Baalke is interested in Ryan Mathews and Mark Ingram. What do Hayne, Mathews and Ingram have in common? Each weighs about 220 pounds, and each runs roughly a 4.5 40-yard dash. They are…