I agree it can be hard to line up multiple at the same time, but unless you're in a desperate situation you can get much the same effect by being prepared to walk. I've talked offers up by being entirely opened that I walked away from an offer of $X, because it was a clear signal to the place I was interviewing at that I was confident I could land more, and I was confident I could because that first offer helped confirm I understood the right salary levels.
It's not quite as powerful as having a simultaneous offer, but the point is not whether or not you go to a specific other company, but whether or not they believe a) you'll actually turn them down, b) you're worth roughly what you demand. Another offer, even if turned down will help in both respects.
It's not quite as powerful as having a simultaneous offer, but the point is not whether or not you go to a specific other company, but whether or not they believe a) you'll actually turn them down, b) you're worth roughly what you demand. Another offer, even if turned down will help in both respects.