The Boomer said:
# 3 is their likely scenario. Drew really doesn't make that much sense for what he will cost. If Iglesias and XB could play 3B so well last season with almost no experience, then a defense at ss first UIF (particularly someone who can play 2B also) is all they should be pursuing. This is where Tejeda from the Mets are someone like that (with offense only a secondary concern) is probably what they seek. Oddly, a Punto reboot might be what they want. Punto was unnecessary tot he 2012 disaster but could be useful again to the prospective 2014 contender. Here are possible free agent options still available:
http://espn.go.com/mlb/freeagents/_/type/available/position/ss
http://espn.go.com/mlb/freeagents/_/type/available/position/2b
http://espn.go.com/mlb/freeagents/_/type/available/position/3b
Someone available in a reasonable trade might be a better way to go.
Munenori Kawasaki seems like a nice fit on more of a minor league deal / spring training invite type situation, likely better suited as depth in Pawtucket, but a plausible bench player if WMB and Bogaerts are both playing well. He's a slappy hitter, but does have a decent batting eye, good speed, and plays good defense at 2B/SS/3B. You'd think they'd be looking for something a little more deluxe for this role, given the questions surrounding Middlebrooks and Bogaerts, but it's not a huge stretch if a minor league deal is his best option.
EDIT: Meant to mention that his kooky personality might also be a fit in the clubhouse.