Rashad has sparred with Jones many times before, that is a huge advantage. He knows the reach of Jones and won't make the mistake of trying to land overhand rights while Jones has his hand in your face and his head tilted way back, you are never landing that punch on Jones.
Jones has pretty much had target practice with guys standing in front of him waiting for him to make a mistake and land a big punch(except Machida), Rashad won't make the same mistake, you can tell by the video of him recognizing this mistake while watching the Rampage fight. Rashad has been practicing with Tyrone, I doubt he goes head hunting Jones, he will circle him like Machida did and chop him down to the body and occasional leg kicks and bring that head down little by little, while also going for takedowns.
Jones is still the favorite in this fight, but most of his previous fighters had the monumental task of having to land a big bomb while going in and out, they were all freaked out of staying in clinching range with Jones, and freaked out of throwing leg kicks; Rashad on the other hand will welcome getting in a wrestling match with Jones but will probably still be reluctant to throw leg kicks, but so should Jones. For all of Phil Davis' standing up weakness, he is a powerful, powerful wrestler and Rashad was able to neutralize his wrestling, I am sure he will be able to do the same with Jones. If Rashad was able to put his ass on the ground a couple of years ago, he will be able to put his ass on the ground on Saturday.