Poe-Maz is IMHO overrated. First when they errata'd Fast Hands it meant Poe could not resolve his own die without mitigation. Also the correct attack on the deck is to kill Maz, which a lot of good aggro decks can consistently do on Turn 1. Poe-Maz also struggles against good Mill decks because Poe needs toys to throw at opponents and Mills take his toys away.
As to Lead By Example, it is actually pretty decent. It provides focus sides and lets you roll in a Support at the same time you roll in the character. Combine with the presence in EaW of cards designed to reduce the cost of playing Supports and you can see where they are headed with this.