
Although CBS could have put Rules of Engagement in its slot quickly the same way they did for How To Be A Gentleman last season. Perhaps they have other plans for Rules, or perhaps there's some problem with mid-season sitcom Friend Me that we don't know about. CBS' future actions this season may shed light on why, or we may never know.

CBS’ Partners last night sustained the steepest week-to-week drop of any Monday program, falling 14 percent in the demo to a 1.8 — the freshman sitcom’s lowest rating to date — while holding steady in total audience (with 5.6 million viewers).
source: TV By the Numbers / TV Line