Celtic boss Brendan Rodgers has candidly shared that this season has been his most challenging as a manager across his entire career. When Rodgers walked back into the Bhoys last year, he was likely under no illusions that his return would be as smooth and carefree as his incredibly successful first spell at the club. It was always going to be more difficult coming back with high expectations, especially when his exit to Leicester left a bitter taste for many Celtic supporters. However, he probably wasn’t expecting all of the dramatic ups and downs that have come his way over the last 12 month…