In March, Rams head coach Jeff Fisher told reporters RB Zac Stacy would likely handle the bulk of the duties for the offensive ground attack. This endorsement came after a surprisingly productive rookie season from Stacy – a fifth-round selection out of Vanderbilt in the 2013 NFL Draft. Stacy quickly surpassed the recently released RB Daryl Richardson on the depth chart, after he averaged a lowly 3.1 yds per carry last season. Stacy finished his first professional campaign with 1,114 total yards and 8 TD's through only 12 games. Now, after the Rams landed Auburn RB Tre Mason in the third round of this year's draft, the Ram coaching staff is holding an open running back competition. According to Ryan Van Bibber, coaches told Mason he will compete for the top running back spot...