The 24 year old had a taste of playing in the big leagues last year and wants to start the season with the big club. He is working on bringing back his splitter like he used in college.
In today's Newsday David Lennon writes up Parnell as a serious threat to make the ball club.
"His fastball is a consistent 96-97 mph -- he's reached 99 -- and he's combined that with a slider and improving changeup. Add the splitter, and Parnell will get more swings and misses as it dives into the dirt."
He could compete for spot with Brian Stokes. The things he needs to develop is confidence the first time he gets rough up. Last year Eddie Kunz tried to make an impression but was a bit shaky .