Through my career in sales I've been exposed to and trained by at least 4 different sales methodology trainers: Sandler, ValueSelling, CEB (Challenger) and Miller-Heiman (PSS). I got something out of all of them, and I'm still not sure which one would be favorite.
What about you? Have you been trained by any of these or other vendors, and if so, what did you love the most out of it?
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