RB Help Martin, Ingram, Mack

Need to pick 2 to play. Based on matchups, I’m leaning toward Mack and Ingram. Any advice would help. Half PPR league

Doug Martin vs. Cardinals
Mark Ingram vs. Lions
Marlon Mack vs. Titans

Martin and Ingram. I would like to watch what happens in that backfield this week before I consider Mack. He hasn’t earned the role yet apparently, and he would be against a funnel defense.