Rosenthal didn't give specifics on why Beltran will not head to Texas. It's unclear if the Rangers are unwilling to meet New York's asking price, or if Beltran is unwilling to go to Texas. Just yesterday it had been reported by Jon Heyman that the Rangers would likely be the team making the best offer for Beltran.
It's possible that the Rangers could have shifted their priorities after last night's loss to the Twins - a game in which the Rangers and closer Neftali Feliz blew. Heath Bell, Mike Adams and Koji Uehara are relievers that the Rangers have been linked to in the past week alone.
Rosenthal believes that Beltran will likely end up as a member of the San Francisco Giants, who have a much more dire need for offensive help than the Rangers, so it's certainly possible that the Giants will simply have a better package on the table than Texas.