That's according to John Sickels.
All of his components have improved: he boosted his BB% from 7.2% in Double-A last year to 12.3% this year, while lowering his K% from 20.3% to 14.9%. He's been especially hot lately and has the strike zone locked in, hitting .425/.556/.750 with 12 walks and just four strikeouts in his last 12 games. Houston officials praise his feel for hitting and plate discipline.
In order for Martinez to get promoted, the OKC OF of Shuck, Durango, Barnes/DeLome is going to have to get shuffled up. Thus making the Durango waiver claim that much more of a head-scratcher.