Favors is a solid starting 5 in the league and it looked like he had better chemistry with Rubio than Gobert has had. However, the keyword was 'Solid', Gobert is elite. If Gobert isn't jiving with Rubio, you don't change the team to fit who works best with Rubio. You change the team to what fits with Gobert. Otherwise your just building an average/above average team when you should be focusing on what needs to be done to build an elite team.
I know it's not a popular opinion around here, but you guys need to stop thinking about "building around Gobert" on offense. You don't build around a C with no jumpshot, no post moves, not the best hands and not even a reliable FT stroke so he can force his way to the line. Rudy right now is the main piece for the Jazz because he's a difference maker on D, but Utah won't be a top team as long as they're trying to accommodate the offense to him. He needs to be the stalwart that he is on defense, and just a guy who gets a dozen points a game off of putbacks and a few easy buckets inside.