I couldn't find anything wrong either, so I picked him up 3 days ago. In his last 5 games Amezaga is batting .272 with 4 runs, 3 rbi, and 2 sb. All while batting lead off and playing 2B, SS, 3B, and CF twice in those games. Not eye-popping numbers, but in a H2H league I'll take those 2sb every time. As long as he can keep getting on base, he's somebody to keep an eye on if you need runs and SB.
The Sporting News had this to say about him a few days ago.
Alfredo Amezaga is well-respected for his all-out hustle and ability to play anywhere -- he's a natural middle infielder and an above-average shortstop, and he has excellent range in the outfield. A switch hitter, Amezaga is in a platoon in center field with Reggie Abercrombie, who starts against lefties.
Not sure how much of a platoon it is right now with Amezaga's position versatility and him starting 8 of the last 10 games. Again, if he can keep getting on base; I imagine Florida will want him in the lineup every day.