Have good footwork, strategic clinching and countering is the key IMO. You have to make Williams move and not stand in front of him allowing him to get off his 5 and 6 punch combos if you don't he'll simply outwork you to a UD win.
Tough game plane! You gotta use the jab and a lot of angles. Get to the body early and utilize the left hook consistantly. Stay on his chest and win the inside fight. But definitley keep the fight in close with a strong commitment to body work in hopes it slows Paul down in the later round....Plus it will create openings to tee off on Paul's head. not an easy fight for Shane, but he can win it if he is able to get up close and personal as soon as the first bell rings. Paul is a good inside fighter but I think Shane is better...on the outside with Paul's reach and constant offense it will not be a good look for Mosely. He'll need to take his jab about and force the inside fight in order to win rounds and create the opportunity for a KO.
If he faught they way he did with Marg Shane would be clipped. Shane's game plan for marg was speed and constant power punches. He didn't need angels or the jab. He just need to be faster and more busy than Marg. Paul presents many more dynamics that Shane and Richardson would have to take into consideration. Basically Shane will have to be faster, more accurate and stronger. He won't be able to match Paul's work rate unless he's able to slow him down and earn respect early on.