If you're taking Colin Kaepernick and want to stack him with someone, Anquan Boldin was clearly Colin's hot read last week when things started rolling for San Francisco's passing offense.
Boldin saw 12 targets, which he turned into eight receptions for 102 yards and a touchdown. Compare this with Torrey Smith only getting two targets last week, and it becomes clear that Anquan is the play for most rational purposes.
Though, it should be noted that Smith is the huge boom or bust play if you're really sniffing out that lineup dice roll. Plus you've got the revenge game narrative going here as Smith gets to show Baltimore what they let go.