Hello Lookout Landing! My name is David Tokarz, and I'm a contributor over at Bless You Boys (I mainly do minor league content). Just thought I'd stop by and give you a bit of information on the prospects coming to Seattle in the Doug Fister/David Pauley trade.
Martinez is one of our top prospects. A young, toolsy third baseman out of Venezuela, Martinez was pushed quickly (he's in AA as a 20 year old this year) but has reacted to the challenge admirably. He's got quick bat speed and the line drives tend to fly off his bat, though he's also got some power potential which he'll probably realize as he grows. His speed is above average, and his arm and hands mean that he'll probably stick at third base, provided he gets the time to work on his glove. His stock was rising reasonably fast in Detroit, and we'll be sad to see him go.
Wells is a really good piece- he's a little old for a prospect, but entering his prime. Earlier this year, as an extra outfielder, he created 1 WAR in 125 plate appearances and various appearances as a defensive replacement. His glove could play in center, but he's a plus defender in a corner spot. His bat's pretty good as well: he's got 20 home run potential and decent patience, though the strikeout rate is (and will remain) high. Tigers fans know that this kid needs a chance to start, so he'll probably get that in Seattle.
Furbush rocketed through the farm system last year with really good numbers, especially in the strikeout department. Don't let that fool you; his ceiling is that of a #4 starter or a long reliever/swingman type. His delivery is very deceptive, which lead to most of the strikeouts, but he gets roughed up the second time through the order (hence the likelihood he becomes a swingman). As far as stuff, Furbush features a fastball that sits 89-91, a pretty good curve and a useable change. He does have a tendency to give up home runs, but Safeco should help with that.
Anyways, the package looks pretty good on your end (at least to me). Cheers!