Analyzing the components of Wednesday's trade that brought Albie Lopez to Arizona:

To the Diamondbacks:

Albie Lopez, RHP
Albie Lopez(AP)	What's to gain: A durable, heady starter who won eight of 12 decisions at one point on a miserable Rays club in 2000. The converted setup man has assembled starter's stuff with a mid-90s fastball, cutter, curve and change.
	What's to lose: Prospects in exchange for AL leader in losses. Though Tampa Bay's defense hasn't helped, he looked just as bad in May and June. He's a groundball-forcing pitcher who needs support behind him.
	What's his role: Follow up Randy Johnson and Curt Schilling, eat up innings and balance the rotation. Maybe he can even be the ace when Schilling and Johnson are washed up and the D-Backs have no pitching prospects left.

Mike DiFelice, C
Mike DiFelice(AP)	What's to gain: A pitcher's best friend with a strong arm, fiery temper and the range to sacrifice his body and block a pitch on the plate. He has already thrown out 16 would-be basestealers this season against 28 steals.
	What's to lose: DiFelice is backup material despite his defensive prowess. He doesn't have the bat to be an everyday presence. He's not exactly Lopez's personal catcher, having caught just three of Lopez's 20 starts this season.
	What's his role: Give Damian Miller a night off and brace himself in case he has to catch the Big Unit or Schilling.

To the Devil Rays:

Nick Bierbrodt, LHP
What's to gain: A tall, crafty lefthander who relies on his changeup and sinker. Arizona's first-ever draft pick works on movement and location. The 23-year-old filled in well for the big club in June, with Arizona winning his first three starts. He struck out 56 batters in 45 Triple-A innings.	Nick Bierbrodt(Allsport)
What's to lose: A lot of hits. When his location isn't precise, he gets pounded, evidenced by his 8.22 major-league ERA and no ERA below 4.50 at any level since 1998. He has a recent history of elbow problems.
What's his role: Join the Devil Rays rotation and start learning by fire in a low-pressure situation.

Jason Conti, OF
Jason Conti(Allsport)	What's to gain: Another outfielder in Tampa Bay with a good batting average. The 25-year-old has had a solid year at Triple-A, hitting .330 with 50 RBI in just over 350 at-bats. He has above-average speed defensively.
	What's to lose: Conti hasn't hit for much power since clubbing 15 homers at Double-A in 1998, which combined with his decreasing speed translates into platoon time at best.
	What's his role: Tampa Bay's outfield is already rather crowded, meaning Conti is a late-inning defensive replacement at best if he doesn't go back to the minors.

Cash
Cash	What's to gain: Much needed financial help for a struggling franchise. New team president John McHale wants the team to reduce costs by dealing high-priced players.
	What's to lose: Not much, unless the Devil Rays spend said cash on another free agent buying spree.
	What's its role: Help out the Devil Rays' bottom line.