In the second of our writers' roundtable posts on Phillies Nation this week, we ran through some questions predicting what to expect of the upcoming big league season. Among the topics were impact prospects, how the Phils will finish the 2016 campaign, roster surprises and more. Read ahead for my thoughts... Which prospect makes the biggest impact this year? Reliever Jimmy Cordero will be that guy, simply based on the amount of time I expect him to get at the big league level. Sure, the Phils have some great prospects in J.P. Crawford and Nick Williams , but both guys are at positions where there isn't an immediate need for them at the big league level. The bullpen will have need and Cordero, who can reach triple digits with his fastball, will be the youngster that contributes the most this year. What in-season trades do you anticipate the Phillies making? The Phillies should continue to be sellers. They should move forward, trying to clean out the leftovers of the...