Lewis Hamilton finished fourth in Sunday’s rain-affected race, one place ahead of George Russell as Mercedes debuted their long-awaited upgrades, including a revised sidepod design. While Wolff noted a step forward in his team’s performance in Monaco compared to the same race last year, he revealed Hamilton and Russell are still not happy with the W14. “It’s so difficult [to assess] because we were in the mix with Aston Martin and with Ferrari, I would say,” Wolff said. “On a positive note, maybe encouraging because we have never been really good here.“We have been three tenths behind pole. Last year was six tenths. The…