Joel Moore writes about this post:

Your observation about Nomar's lack of RBI this month was interesting and puts some concrete numbers to what I'd observed in listening to and following Sox games. I do have one comment about your observation though. While his extra base hits are down a bit from last month (18 XB out of 37 H in 109 AB vs 13 XB out of 40 H in 93 AB), perhaps the lack of RBI can also be attributed to the 1 & 2 hitters for the Sox not getting extra base hits or singling and then stealing second.

Carlos Delgado's June stats make for an interesting comparison to Nomar's.

AB  R    H  2B  3B  HR  RBI  SB  CS  BB   BA  OBP  SLG   OPS

73  16  20   4   0   7   26   0   0  15 .274 .426 .616 1.042

Delgado's slugging percentage is lower than Nomar's (though larger in comparison to his batting average).

The main difference seems to be in the 3B vs HR.

When I saw the 55 men on last night, that sounded reasonable to me, so I didn't check the OBA of the 1-2 hitters. Joel's letter led me to revisit that, and it turns out the tablesetters for the Red Sox have a .316 OBA in June. So Nomar hasn't had a reasonable number of runners on base in front of him. The Blue Jays 1-2 hitters have gotten on at a .356 clip in June, helping Delgado's RBI numbers. And remember, a HR guarantees you an RBI; a triple doesn't.