I am way more confident with Dembele in midfield playing than any of the other midfielders. He isnt as effective, needs to improve on that, but he retains the ball, rarely loses it and buys us a few seconds when under the cosh. He is also one of the best dribblers ive seen.
He shields the ball extremely well (probably as well as any footballer), not sure your definition of confident as vs. effective
He's a good option now, but Mason/Bentaleb/Chadli/Eriksen are first team certainties if available, and we don't really play Dembele RW