Last year, Stewart carried an ERA of 4.23 between AA and AAA. He averaged 6.3 SO9 and 5.0 BB9. This year, Stewart carried an ERA of 4.47 between AA and AAA. He averaged 8.4 SO9 and 2.7 BB9 Overall... Stewart spent parts of three seasons in AA, 3.87 ERA, averaging 6.5 SO9 and 4.2 BB9. Stewart spent parts of two seasons in AAA, 4.34 ERA, averaging 6.9 SO9 and 2.6 BB9. Those are pretty poor numbers (certainly don't scream promote me)and Berrios dwarfed those AA and AAA numbers when he was there...