It is a positive sign that Rawls was removed from the PUP list but it is still extremely likely he misses the entire preseason. Coach Carroll has already said the team plans to take it slow with Rawls. If they ease him back into the offense once the regular season starts as they said is the plan, Michael will probably absorb whatever snaps Rawls is absent for. And if Rawls suffers any setbacks in his path to recovery, Michael would likely slot in as Seattle's starting running back for however long they need him to be that guy, and possibly beyond that if he performs well.