While on the topic of the Red Sox's bullpen:
The reason Kimbrel isn't back in Boston is MONEY... the Red Sox, thanks to soaring arb costs and handing out contracts like candy in recent years, are paying the piper financially--as of right now according to Cot's, they are at $237,569,167 for CBT tax purposes, with just <$9M in flexibilty before they hit the maximum tax and lose 10 spots in the draft. Not to mention, ownership is also putting pressure on the Sox to keep payroll down.. John Henry has already said the team cannot add any more salary, as the team is losing money at current payroll levels--sure they make money, but taxes, revenue sharing, stadium costs, etc. wipe out a ton if not all of the profit.
Same problem in New York--$220M in payroll and Steinbrenner's crying poor due to the team's high costs, similar to Boston--hence why Machado is not a Yankee.
http://www.espn.com/mlb/story/_/id/25947832/hal-steinbrenner-says-yankees-made-right-moves
Especially this notable quote:
"With no discussion of our costs, that's always the problem," Steinbrenner said. "I hear everything about our revenues, I hear nothing about our cost. I hear nothing about the gargantuan debt service payment that we have to pay every year [on bonds that financed new Yankee Stadium], nothing about all of our stadium operations, all the security, not to mention player payroll, not to mention revenue sharing."
Even the Dodgers are under the same pressure to keep payroll down as well as they have gigantic debt payments from the team being purchased by Guggenheim previously and jacking up the payroll so significantly, they're now having to cut down sharply to cover debt service and get out of the luxury tax, and save money for when guys like Seager and Bellinger hit arb, while keeping a sustainable pipeline of young players coming to keep this team competitive. Unfortunately, as known, the Dodgers still can't get over the hump.. they are in danger of becoming MLB's version of the Buffalo Bills--frequently in the World Series for several years, but never winning a ring. And they need to win in the next year or two, especially with Kershaw approaching the end of his prime.
Part of this is the main reason why FA has been absolutely glacial this year.