IMO; Normally the book only has what you can't do. So it's kind of like forgiveness is better than permission. Therefore, if it ain't there then you can do it.
The way I interpret the less than 5 players rule is this; A has two outstanding players left in closing seconds of the game & A is ahead by several points. A1 fouls out. A2 can finish the game if B can't score enough points to go ahead with time remaining. Yes A would have to throw the ball to B & play defense after B makes a basket. But I'm only talking closing seconds.
For example; A is 8+ points ahead & there is only 5 or less seconds left in the game.
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"Enlisted men are stupid, but very cunning & deceitful & bear considerable watching." - Officer's Manual 1894
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