Let us take a brief trip into the career of Andrew Brown (because too many people write players off without actual research. This really needs to stop.)
The guy is now 28 years old with only 135 major league at bats (.224/.284/.396 with 5 home runs). What does this tell us? Andrew Brown has not had many opportunities in the big leagues.
Why? Well, let's look at the Minor League numbers:
In 6 seasons in the minors, Andrew Brown has posted .282/.365/.512 with an OPS of .876.
Last year in AAA, Brown had 390 at bats and batted .308/.364/.597 with an OPS of .961 and 24 home runs.
The year before that in AAA, 359 ab's .284/.382/.501 with OPS of .883 and 20 home runs.
From his stats alone, Andrew Brown is at least a platoon player. The question is, what held him back?
Sources: http://www.baseball-reference.com/minors/player.cgi?id=brown-004and
Now we will look at the scouting report.
There wasn't much in the way of scouting for Andrew Brown, but this is what I dug up.
This is an article from the Cardinals. Brown is a "bat first player who put steady power numbers throughout his time in the minors. His strikeout rate and ability to cover the strikezone will be the primary concerns at the big league level as his defense will never secure him a roster spot."
http://www.futureredbirds.net/2011/10/12/andrew-brown-claimed-on-waivers/
In this article, Brown is labeled a 'sleeper prospect' with the Cardinals. They do mention that, "Brown is behind too many similar players on the depth chart—Allen Craig, Mark Hamilton, Stavinoha, with Matt Adams coming up behind him in AA."
http://stlouis.sbnation.com/st-louis-cardinals/2011/5/31/2197050/st-louis-cardinals-prospects-andrew-brown
In this final article, Brown has elected free agency over the Rockies. "He’s yet to be given a full-time opportunity to translate those numbers in the big leagues, and has now opted to choose his next chance rather than go back to the minors."
http://www.baseballanimals.com/andrew-brown-elects-free-agency/
This brings him to us. So what do we know about Andrew Brown? He is a good offensive player who can struggle at the plate sometimes. He has power but lacks in fielding. He never got an opportunity with a big league team even after posting ridiculous numbers at AAA two years in a row, always being surpassed by more 'elite' prospects. So basically, we have a guy with massive potential but has always lacked an opportunity. I love the minor league deal signing and cannot wait to see him tryout for the team.
For visual reference, here is a video of Brown mashing a huge home run. Enjoy.
http://mlb.mlb.com/news/article.jsp?ymd=20130102&content_id=40827340&vkey=news_mlb&c_id=mlb