We've already gone over the working titles of Colin Kaepernick's pass-catchers: Michael Crabtree is his favorite receiver while Vernon Davis is his security blanket, Brandon Lloyd is his most explosive weapon down the left sideline and Anquan Boldin is his Mr. Dependable.

So where does that leave Stevie Johnson?

With the San Francisco 49ers enjoying a much-needed bye this week after seven games, you could say Johnson, who is technically fourth on the depth chart, is a combination of them all. At least, he is when thrown the ball.

True, Johnson is only third on the team with 25 receptions, behind Boldin's 39 catches and Crabtree's 32. Johnson's 315 receiving yards are also third, behind Boldin's 447 yards and Crabtree's 322 yards.

But Johnson's three touchdown receptions are tied with Crabtree for the team lead and Johnon's yards-per catch average of 12.6 is better than that of either Boldin or Crabtree. Johnson's six catches of at least 20 yards lead the Niners.

All of this despite playing just the fourth-most snaps among the wideouts.

Truly, pound-for-pound, Johnson, who was acquired in a trade with the Buffalo Bills for a conditional fourth-round pick in May, might actually be Kaepernick's best pre-bye receiver or, at least, his most productive.

Consider: per Pro Football Focus, Kaepernick has a 127.8 passer rating when throwing the ball to Johnson, completing 25 of 31 throws his way for 312 yards, the three scores and an interception.

Might a shift in roles for Johnson in the second half of the season be in the works? It's something the 49ers might consider over the break.