Every season, Baseball America surveys managers and coaches to determine the best of the best in baseball over a number of categories. These range from actual scouting tools like power or speed to best pickoff move. Of course, people "in baseball" are not necessarily great arbiters of what happens on the baseball field, but I still think it's interesting.
Here is a rundown of Rays players appearing on these lists.
BA does not lay out at-bat or innings requirements for inclusion, so my assumption is there are none. If a player is seen by a manager and voted for, he's on.