"I can find no instances of Cabrera getting replaced by a Kelly/Inge type player"
It's happened before.
"In what was one of the more pathetic and lackluster lineups the Tigers have used all season, Detroit had none other than Don Kelly and his .250 batting average and three RBI batting cleanup behind Miguel Cabrera. Don Kelly? When we start seeing a guy with zero career homeruns and four career extra-base hits to his name batting fourth and providing protection (or lack thereof) for Cabrera"
I specified "last year" in my post, but the fact you had to go back to July of 2009 to find an example tells me that it's not as big of an issue as you perceive.
Also, look at the rest of that lineup. Who should be hitting cleanup? Josh Anderson? Adam Everett? Laird? Santiago? Maybe pull old Clete Thomas off the bench?
Let's face it, offense was not our strong suit in 2009. It looks funny to see Inge hitting fifth, but he hit 27 HRs that year.