What college education could help an experienced executive climb the ladder?
If you have 14 years experience, academic achievements are almost irrelevant.

Instead, look at professional certifications, experience managing teams or projects, business achievements etc. as these are what others will look at.

You could go for an MBA - that could be appropriate at the level you are at, but it may not be worth the time and money to go through it. I looked at an MBA 15 years ago and it didn't have anything then that I couldn't get from other avenues. I have revisited the decision now I am looking at some more Director roles, and while it is a bit more tempting, it doesn't give me much for the time and money, whereas my professional certifications and board roles are much higher value to me.