Who am I?

 

I was born in Cuba and signed by super scout Joe Cambria and the Washington Senators as a amateur free agent prior to the 1960 season but I never played for the Washington Senators big league ballclub.  I finally made the big leagues with the Minnesota Twins but I appeared in only 37 games in a Twins uniform. I then went on to play for the Atlanta Braves, the Houston Astros, the St. Louis Cardinals, the Oakland A’s, and the Texas Rangers. I was in the majors for parts of seven seasons and I played in 436 games. I had 1,038 plate appearances in the big leagues but I was not what you called a power hitter as I never hit a big league home run. I did however, play all nine positions in the big leagues. After my playing career ended, I spent many years in the Seattle Mariners organization performing numerous duties. One of my duties for the Mariners was in scouting and I am credited with signing Edgar Martinez and Omar Vizquel. Who am I?

UPDATE: The answer is shortstop Marty Martinez.