An iron will that will not easily be broken is sometimes all it takes to beat a guy with Better skills. It's that simple.
Not based on beating Canelo's and Vargas's leftovers. Williams would expose Mungia, and so would Lara.
That's fair, but he doesn't have the kind of skillset to make me think he'd beat someone like the ones I mentioned without seeing him bit someone on their level first. He will get exposed fairly soon if they don't match him properly. He can have all the will power in the world, and it won't make a difference.
That's true, I'm assuming that Lara would be in top form for the fight. He's been fairly wishy washy throughout his career.