You have a decent core.
I wouldn't consider Moreno to be an RB2. Shuffle Grant into that spot and use someone else in your super flex.
Also - I would grab another upside player at the RB/WR position and ditch Mercerdes Lewis. He's not a proven starter, and someone equally good would be available on waiver should Gates become injured.
Take a look at mine?viewtopic.php?f=44&t=492104