“These things take time but the window has closed and I am every happy with the quality of the squad, the players we have brought in and the players we already had.” Neil Lennon has been named as the Premiership manager of the month for August.The Celtic manager, who landed the job on a permanent basis after securing last season’s triple treble, saw his side score 15 goals in their first three league games. After putting seven past St Johnstone on the opening day, the Hoops also beat Motherwell 5-2 and Hearts 3-1 to keep up their 100% winning start to the domestic season.They also progressed in the League Cup and reached the Europa League group stage after exiting the Champions League in the third qualifying round. September began with another win for Lennon’s men as they beat Old Firm rivals Rangers 2-0 at Ibrox to go three points clear at the top of the Premiership.Lennon declared himself “very happy” with their summer transfer business after signing three players on deadline day. Kilmarnock left-back Greg Taylor was followed by teenage defenders Jeremie Frimpong and Lee O’Connor to make it 11 signings across the window. After collecting his manager of the month award, Lennon said: “The club is united, let’s get that right. There’s been a lot of sniping but we stayed very strong on it and composed and knew what we wanted to do.