Average > replacement level
I didn't denigrate BR's WAR calculation, that was some other awesome poster.
Drew is an asset, just not a $13M one. And not one you sign to have sit on your bench for shits and giggles.
Do you want him back for only one year now? You just said "another year or two" a little while ago.
Bringing Drew in would only make sense if he had positional flexibility. He doesn't.