Aside from the competition, he is not the first option on his team as well. It is hard to stack stats if you are not the first option. He is the third option at best. He can have a bounce-back year but aiming for an MVP is just too much for him to achieve. He is not the prime Westbrook that we used to know.
Lebron still be their number one option and second is Davis so its hard for him to snatch the MVP this season since the ball rotation of lakers is not focus on him. Maybe if he can provide solid numbers to purple and gold plus he will be consistent on number of games played the phase will change then their management will decide to make him a number two option for them. So Westbrook really need to work hard this upcoming season since he have need to prove his worth for second time.
That is a big challenge to Davis and Westbrook if they are truly aiming for the MVP award because LeBron is also there and he's expected to be in the top spot when it comes to the race for the MVP especially this season that he's looking forward to break another record and beat Kareem Abdul-Jabbar in the all-time scoring list. Other than that, they should aim reach further than what they reached last season because they can't write another history if they will just end up in the regular season again.