I think that I have some concern with the notion that 2 in and 2 out is our saving grace. The standard was not originally designed for the Fire Service, and in my mind leaves us in a position of doing more work with less firefighters. At the same time it provides us with a false sense of security, as we are being lead to believe that 2 firefighters outside are enough to rescue 2 firefighters inside.
Now before you tar and feather me......I am not saying we should throw the baby out with the bath water. However I am not sure that 2 in and 2 out provides us with what we need when it comes to deciding when and how to attack a fire in a building.
Look into Phoenix's studies after the death of Brett Tarver. Look at how many firefighters it took to locate a mising firefighter, let alone perform the rescue.
Do you think it is possible that 4 people on the hoseline, stretching and venting may produce a quicker, safer, better result?