The Title's Wrong
The title of this article really should be "A's impose contracts on 29 players." "Agree with" is really a terrible word for a part of the collective bargaining agreement by which the team can renew a player's previous year's contract in his first 3 years of being in the major-leagues without any sort of negotiation.
Then again, I'd readily "agree to" a $400,000+ contract just to play baseball for 6 months.