Oh and here are the ev spreads:
Mienfoo --> Mienshao
Item: Life Orb
Moveset: Fake Out, Hi Jimp kick, stone edge, u-turn
Evs: 252 atk/4 def/252 speed
Roggenrola -> Boldore
Item: Custap Berry
Moveset: Earthquake, Rock Slide, Explosion, Stealth Rock
Evs: 252 hp/4 def/ 252 atk
Golett -> Golurk
Item: Expert Belt
Moveset: Shadow Punch, Earthquake, Hammer Arm, Rock Slide
Evs: 236 HP/252 atk/20 speed
Drilbur -> Excadrill
Item: Air Balloon
Moveset: Swords Dance, Earthquake, Rockslide, X-Scissor
Evs; 252 speed/252 atk/ 4 hp