The Red Sox believed they had an overabundance of starting pitchers entering the 2006 season.
The acquisition of Josh Beckett from the Marlins set up a rotation that also included Curt Schilling, David Wells, Tim Wakefield, and Matt Clement. A young lefthander named Jon Lester was on the way, too.
As spring training started to wind down, the Sox traded an extra starter, 29-year-old righthander Bronson Arroyo, to the Reds for Wily Mo Pena, a linebacker-sized 24-year-old outfielder with great power but a fleeting grasp of the strike zone.
The well-intentioned move failed miserably.
With the same apparent overabundance of starters coming off their 2013 World Series championship, the Sox have to avoid making a similar well-intentioned but harmful deal as they head into 2014. Full story for BostonGlobe.com subscribers.