I had a few questions about the Tucker DFA, most of which I answered myself with some research, but while doing that I discovered some transactions that may have slipped under the radar.
12/11/17 Houston Astros signed free agent RHP Matt Ramsey to a minor league contract and invited him to spring training.
12/11/17 Houston Astros signed free agent C Tim Federowicz to a minor league contract and invited him to spring training.
Ramsey is a 28 year old reliever who was the closer for the Brewers AA club last year. He missed all of 2015 and most of 2016 with a lower back injury but returned to strike out 58 batters in only 44 innings. His minor league stats are pretty phenomenal.
Federowicz has bounced around over the past few years while putting up good offensive numbers at AAA (especially for a catcher) and maintaining his solid defensive reputation. I assume he is the heir apparent to Centeno.
Regarding Tucker, I like to think that Luhnow made the trade with the Braves specifically to get him closer to home. It runs counter to the public perception that the Houston office is full of stat-counting nerds with no regard for their players.