With the new Scottish Premiership season underway for Celtic and Brendan Rodgers, the Hoops boss has had a great start so far. With four wins out of four in the league, including the 3-0 win over Rangers, Rodgers has also progressed Celtic into the next round of the League Cup as well. However, whilst domestic dominance will always be the focus for Celtic, Paul Lambert believes the club should be setting their sights further. With Celtic finding out their Champions League opponents last week, Lambert says now is the time for Rogers to take the next step with Celtic. Champions League progressio…