It's the typical early adopters/mainstream/laggards split (see Crossing the Chasm). Basically employees at BigCo get a smile and a pat on the back if a decisio

It's the typical early adopters/mainstream/laggards split (see Crossing the Chasm). Basically employees at BigCo get a smile and a pat on the back if a decision they make goes well, or they get punished, demoted, or fired if it goes badly. Since they're not writing the checks and have little upside, they're inclined to go with the boring, conservative choice.