"Trevor and Adam have each developed tremendous foundations for their promising careers ahead," D-backs farm director Mike Bell said. "It truly is a testament to our outstanding player development staff and how great our Minor League coaching and support staffs are at each level of the organization.
"They are able to teach our players how to reach their potential on the field, but also teach them how to become better people off the field. We are also grateful to our affiliates for creating an environment for these young players to be successful."
Bauer was the team's No. 1 pick (third overall) in the 2011 First-Year Player Draft and he went a combined 12-2 with a 2.42 ERA in 22 starts for Double-A Mobile and Triple-A Reno. He led D-backs Minor Leaguers in strikeouts (157), tied for first in wins and was second in ERA.
Bauer made four starts for the D-backs in the first half of the season and was 1-2 with a 6.06 ERA.
Eaton hit a combined .375 with 47 doubles, five triples, seven homers, 44 stolen bases and 130 runs scored for Mobile and Reno.
Eaton led all Arizona Minor Leaguers in average, hits (198), doubles and runs scored. His hit total led the Minor Leagues and was the second-highest total since 1997. As a result, Eaton was named the Pacific Coast League's Rookie of the Year and he also captured the PCL's Most Valuable Player award.
Eaton was called up to the big leagues for the first time on Sept. 4 and he hit .259/.382/.412 in 22 games before having his season cut short when he suffered a fractured right hand after being hit by a pitch on Sept. 29.