It's probably just because I notice it when it's a former A's draftee. but I've been feeling like there seemed to be a large number of A's draftees on other teams in the past few years.  

Especially with the draft coming up in the near future, I thought this would be a good way to actually quantify the various drafting strategies.  Basically, if there are more A's than there are Royals draftees...then the argument could be be made that the A's "draft better".

The problem is, I haven't been able to find a site that quickly lists a 40 man roster and who they were drafted by.

As much as I've thought about it, I'm not going to every players bios and searching for the info.

Can anyone help with a location?