Ok. I feel bad.
Noesi was a prospect that the Mariners got when they traded their prospect, a young ace potential guy, Michael Pineda to the Yankees (Jesus Montero also received in that deal). He's so-so. Fighting for a spot in the rotation this spring.
Seager was Ackley's buddy at UNC, who actually played 2nd base for the Tar Heels. He has since moved to 3rd base and was one of the Mariners most productive hitters last year and still has decent upside.
Jacobs hit over 30 home runs for the Marlins back in '08, but since has virtually fallen off the map only to resurface with Seattle in Peoria for Spring Training.
Andino was somewhat of a utility player for the Orioles the last few years, with the ability to play multiple spots in the infield. Provides some depth for the M's and flexibility when they need rest days for some players. He was also the subject of NT laughs when his smile seemed to have disappeared since his rookie year being on what was then, an abyssmal Oriole team.
Saunders was probably on his last go-around with the Mariners last year unless he showed he had progressed to a point where the M's were still willing to give him a chance. He hired a hitting coach last off-season and showed a good enough progression that the M's decided to hang on to him. He showed glimpses of having above-average power and good range in CF, while filling in for Gutierrez when he was injured. This year the M's hope he can show even more progression to make him a fixture in their lineup.
Ackley had a rough year hitting the ball last season, but some believe it was an adjustment for his first full season and other things here and there were listed as possible factors. Most expect him to take off this year, like they originally expected of him.