Dick,
After all the dust settles on a rescue, of course there is discussion about how it could have been improved or modified. Safety, CRM, achievement or non-achievement of the aim will all be covered during the debrief and modifications made if/where required. 20-20 hindsight is a wonderful gift.
Unfortunately, the gift is not given until after the rescue. During the rescue you must rely on your training and your previous gifts of 20-20. No-one goes into a rescue with the intention of increasing risk.