From Jon Paul Morosi at Fox Sports (h/t to MLB Trade Rumors):
After the requisite "Andy MacPhail might be hesitant" caveat, Morosi suggests the following as possible targets for the Orioles:
If the Orioles move Guthrie, they will want pitching in return. Baltimore had a major-league scout in Toledo, Ohio, at a game between the Class AAA affiliates of the Tigers and Yankees on Sunday. Three of Detroit’s top left-handed pitching prospects appeared in the game: starter Andrew Oliver and relievers Charlie Furbush and Matt Hoffman.
Furbush is a candidate to start for the Tigers against Oakland on Wednesday, which made the timing of the relief outing rather curious. Toledo manager Phil Nevin said Furbush appeared in the game because of instructions from the Tigers’ front office.
The Toledo roster also includes Ryan Strieby, an intriguing power-hitting first baseman who is blocked in Detroit by All-Star Miguel Cabrera.
I don't know much about any of those names, so I can't speak to how good of a return any of those players would be. Thoughts?
Andrew Oliver is a 23-year old left-handed pitcher that was drafted in the 2nd round of the 2009 amateur draft. He's made seven starts for the Tigers from 2010-2011 with little success, and has made seventeen starts in AAA this season with a 4.63 ERA. His walk rate is an alarming 4.7 per nine innings, though he does strike out a decent number (8.4 per nine).
Charlie Furbush is a 25-year old lefty that has appeared in fourteen games with the Tigers this season, twelve of those in relief. He's been ok, not great at the major league level. In the minors this season he's been quite good, striking out over 10 per nine innings with a K/BB of 3.81 in ten games (nine starts). Furbush was drafted in the 4th round of the 2007 draft.
Matt Hoffman was drafted in the 26th round of the 2007 draft and has not pitched in the major leagues. He's only 22-years old and is strictly a relief pitcher. In AAA this season he has pitched 42.1 innings in 34 games with a K/BB of just 1.78.
Ryan Strieby was drafted in the 4th round of the 2006 draft and like Hoffman has not appeared in the majors. The 25-year old 1B/DH has seen his power numbers drop since moving to AAA in 2010 and is currently batting .261/.330/.448 with 14 HR and 21 2B in 376 plate appearances this season.