Milone also was a September call-up who made his debut in the big leagues. He went 1-0 with a 3.81 ERA in five starts. Milone was promoted after striking out 155 batters with just 16 walks this year at Triple-A Syracuse.
Norris has good power for a catcher. He hit 20 home runs for Double-A Harrisburg.
The 19-year-old Cole went 4-7 with a 4.04 ERA last season at Class-A Hagerstown.
Gilliam, the A’s eighth-round pick in 2009, went 12-7 with a 5.04 ERA and 156 strikeouts for Class-A Vancouver this year.
AP Sports Writer Joseph White in Washington contributed to this report.