Shanahan is able to plug in either back in any offensive situation because of their versatility
Can Wilson make a deep backfield corps that also includes Breida, Coleman, McKinnon and Mostert?
If he can stay healthy, McKinnon will help give the 49ers a deep, versatile corps of running backs
Shanahan's offense could be powered by talented group of backfield players
One coach calls Coleman signing this spring 'the equivalent of a March Christmas'
Shanahan, too, says backfield will be stronger with return of McKinnon
Coleman played for Shanahan when the two were with the Falcons
McGlinchey, Pettis, Warner led a 2018 group of rookies that made an impact
Key pieces of 49ers offense are expected to be fully healthy for 2019 season
Shanahan loves the way Wilson runs hard and punishes tacklers