Obviously if Arian Foster is healthy in time to play in Week 12, Alfred Blue's value plummets, but Blue might actually retain some value even if Foster does go.
Entering Week 11, the Texans were the most run-heavy team in the NFL, and Blue ended up toting the rock 36 times. He was able to sustain a 4.3 yards per carry average, securing 156 yards on the ground. Blue and the Texans face the Bengals in Week 12, who have been dreadful against the run this year.
Even as a spell back, Blue could work in a pinch against this run defense given their commitment to the run.