Pivot foot

[Adam]

Originally Posted by Nevadaref

Unless you can state the illegal manner in which the player holding the ball moved his feet, the play is legal.

Don't penalize strange, unusual, or ugly. Save the whistle for illegal.

Ok, here's the rationale for rhetorical purposes.

The rule makes the extra allowance for the jump stop who catches the ball while moving. Without that allowance, the pivot would be established by a player catching the ball with one foot on the floor.

Since the rule says "while moving," it could be presumed that a player who catches the ball stationary cannot take advantage of the "jump stop" provision.