Um... Welcome back?

With news that the Justin Morneau may be back for ALCS, there is a bit of joy, and then a bit of consternation. What exactly will we do with him? Part of the resurgence the Twins had late in the season was due to Delmon Young and Jim Thome showing up every day in the lineup. Jason Kubel and Michael Cuddyer have been all right, but are decidedly in the throes of a down year. When Morneau comes back, that means PAs are taken away from at least one of those guys, right? In the postseason, do you really want to mess with what has been a good thing?
Let's say you do. The obvious choice for a platoon with Morneau is Michael Cuddyer, a righty who has been playing the same position, but isn't really hitting all that well. If Morneau were to play a full slate of games (foolish, if you ask me) then Kubel and Cuddyer could be the platoon in right field. They are the weaker elements of the 4 in question so far.
So why am I concerned, then, that it would be Thome and Young in a platoon? Is it because the Twins too often revert to what is most comfortable? Cuddyer, Kubel and Morneau will probably all see regular playing time in the ALCS.
Hey, what am I complaining about. I would be ecstatic if they make i that far.