Bargaining in bad faith?

On Monday, the Braves faxed a signed offer to Rafael Furcal,

...three years, $30 million with a fourth-year vesting option. The Braves then believed they had a deal. No member of the Braves’ front office ... could recall a time when a signed term sheet was not the equivalent of a handshake agreement, ethically – if not legally – binding. Instead, the Braves believe, Kinzer shopped the term sheet to the Dodgers.

And the Dodgers signed him for $3 million more.