East Notes: Orioles, Pedroia, Red Sox, Olivera

The Orioles have begun reaching agreements with much of their coaching staff after offering deals to all of them. Bench coach John Russell inked a two-year deal last month, Roch Kubatko of MASNsports.com reports (all links to Twitter). Hitting coach Scott Coolbaugh, third base coach Bobby Dickerson, and bullpen coach Dom Chiti are all now under contract for next year, Kubatko adds.

Here’s the latest out of the game’s eastern divisions:

Red Sox second baseman Dustin Pedroia says that his hamstring injury was somewhat more serious than had been known during the season, as WEEI.com’s Rob Bradford reports. The 32-year-old explains that he tried to come back too quickly after suffering a grade 2.5…