You're probably not wrong about the part where Williams would be back sooner than later but in the end I don't mind losing the guy who will be 29 years old and due for around $2 million next year, has an injury history himself and probably isn't that much more of a true CF over the two younger cheaper, and arguably more promising players.
Plus if Altherr actually has an upside that isn't just, Ben Francisco/John Mayberry Jr., he deserves the chance to find out. (So does Williams, but his short-term value/long-term trade potential is higher).
Of course Quinn could stay down there for another two weeks if they want, no?