Phillies: Which free agent starting pitcher best fits the rebuild?

CHICAGO, IL - OCTOBER 18: Jake Arrieta
CHICAGO, IL - OCTOBER 18: Jake Arrieta /
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PHILADELPHIA, PA – MAY 22: General manager Matt Klentak of the Philadelphia Phillies talks to the media before a game against of the Colorado Rockies at Citizens Bank Park on May 22, 2017 in Philadelphia, Pennsylvania. (Photo by Rich Schultz/Getty Images) /

Can the Phillies chip away at the cold stove going into Clearwater?

Phillies general manager Matt Klentak has been immune to the frigid offseason felt across Major League Baseball. Having traded a Gold Glove-caliber shortstop and signing three second-tier free agents Klentak has put the Phillies in a good position heading towards the 2018 season.

The one piece Klentak has openly stressed over is a starting pitcher to stabilize the rotation for 2018 and beyond. Aside from Aaron Nola the questions surrounding the starting rotation outweigh the answers needed for Zach Eflin, Jake Thompson, Vince Velasquez, Ben Lively, Jerad Eickhoff, Mark Leiter Jr., and Nick Pivetta.

Many veteran pieces remain on the free agent market, and Klentak appears destined to sign at least one of them. Does one make more sense than the others?