You're just being obtuse now.
But I'll entertain you a little longer, because I really can see that you are just choosing 'not to see it'.
Whippet is added to many lurcher/longdog types, to increase take off speed, agility, fire, tenacity, good compact feet, to name just a few qualities. And by 'fire' and 'tenacity', I don't mean fighting dog qualities, rather being keen as f**k and game for a morning's work.