Quoting: ceeque84
At this point Allen is not an upgrade over Koskinen so no thanks.
Koskinen + Allen vs. Koskinen + Smith
Not Koskinen vs. Allen
Koskinen wasn't good in the playoffs. Smith hasn't won a playoff game with Edmonton. Factoring in Smith's age, injuries, and performance this season, do you want him as your plan B for a deep playoff run?
Koskinen is already a risk given his previous post season results. If he falters can Smith handle 20ish consecutive starts and remain healthy?
Skinner is inexperienced and a last resort. By the time you need to use him, you're likely on the verge of elimination.
Allen at least has experience, can handle a lot of starts, is younger, and less susceptible to injury.
There are other options, but I wouldn't want to go into the playoffs with what Edmonton currently has.