Umpire wants yellow card, Referee refuses - OK?

[Homer]

Originally posted by varefump
This is also one time when the 'R' does not need to back up the 'U'.
Many times the referee can briefly explain why he/she is not going to card a player/coach because of its negative impact on the match.
If the referee agrees that a Red Card is appropriate, then it will apear to the coaches and fans that it's a 'crew' decision, and not one based solely on the judgement of one official.

The rulebook says, "It is the responsibility of the referee to IMMEDIATELY administer any card(s) requested by the umpire."
[Page 46]

I'd suggest it is always a good idea to follow the rule book.

Are you going to overrule your umpire on a net violation call because of its "negative impact on the match"?