I would think a major shift to 1B would take more than 6-7 days of practice before actual game work, but maybe he did look bad.
He will get another ML look, at some point, but with Arroyo back and Kike playing very well, he's stuck at AAA, as is Duran and others.
I doubt we trade Cordero, unless we feel Duran is a sure bet to do well in the majors. Having 4 FT OF'ers creates a problem that Cordero would just make worse (better in reality).