Assuming you mean "cash in to finance the development of Selhurst", I think one could make a pretty compelling case as to that actually being a solid idea. As SP said on the wireless, in reality all teams get a very similar amount of TV money so the difference maker it ticket sales, and we're always behind all but the most ridiculous premier league grounds.
However through skill, genius, luck of a combination of all three, we're suddenly in a position where we're probably too good to go down (ho ho ho) but could raise 150m in pretty short order. Just like when dear old Granny shuffles off in her 90's leaving a nice wedge to the boomer children, it's THEN when the new conservatory gets built, the roof gets replaced etc. Maybe this is the exact moment to cash in the windfall, scrap away for a mid table finish with what we've got, but actually move the club forward to benefit the next 20 years.