There is no "or." There was no requirement for an act common to the game. Read the
bold part.
c) maintains control of the ball long enough, after (a) and (b) have been fulfilled, to enable him to perform any act common to the game.
Note 1: It is not necessary that he commit such an act, provided that he maintains control of the ball long enough to do so.
First, it's not even
the same three-step process.
2014
a) secures control of the ball in his hands or arms prior to the ball touching the ground; and
b) touches the ground inbounds with both feet or with any part of his body other than his hands; and
c) maintains control of the ball long enough, after (a) and (b) have been fulfilled, to enable him to perform any act common to the game.
2015
(a) secures control of the ball in his hands or arms prior to the ball touching the ground; and
(b) touches the ground inbounds with both feet or with any part of his body other than his hands; and
(c) maintains control of the ball after (a) and (b) have been fulfilled, until he has clearly become a runner.
2014
A player becomes a runner when he is capable of pitching the ball, passing it, advancing with it, or avoiding or warding off an opponent.
2015
A player becomes a runner when he is capable of avoiding or warding off impending contact of an opponent.
Second, Item 1 does not say "
starts to go to the ground." Those are your words.
If a player goes to the ground in the act of catching a pass (with or without contact by an opponent), he must maintain control of the ball...
Wrong. They were both in the
2011 rule book together.
No it's not. Not prior to 2015.
Post any rule from before 2015 that says so.