Wizards can't give away Blatche. Only way I'd even consider him is in the off-season, Boston swung a deal for Blatche like trading a trade exception to Washington. Then for taking back Blatche's contract, the Wizards send a top 3 protected pick.
Blatche is not a 'low-risk, high-reward' gamble. If he doesn't work out, you're on the hook for his 7M/per contract for a long time. Heck, he's due 8.5 in 2015.