Arsenal's self-sustaining model relied heavily on qualifying for the UEFA Champions League; as Wenger recalled in 2016: "We had to be three years in the Champions League out of five and have an average of 54,000 people, and we didn’t know we would be capable of that." The club sold several experienced players throughout the late 2000s and early 2010s and raised ticket prices, upsetting supporters who have called for change. Wenger took umbrage over criticism and revealed the bank loans were contingent on his commitment to the club: "The banks wanted the technical consistency to guarantee that we have a chance to pay [them] back. I did commit and I stayed and under very difficult circumstances. So for me to come back and on top of that [critics] reproach me for not having won the championship during that period it is a bit overboard." Wenger later described the stadium move as the toughest period of his life because of the restricted finances in place. In August 2009, Arsenal began a programme of "Arsenalisation" of the Emirates Stadium after listening to feedback from supporters in a forum. The intention was to turn the stadium into a "visible stronghold of all things Arsenal through a variety of artistic and creative means", led by Arsenal chief executive Ivan Gazidis. Among the first changes were white seats installed in the pattern of the club's trademark cannon, located in the lower level stands opposite the entrance tunnel. "The Spirit of Highbury", a shrine depicting every player to have played for Arsenal during its 93-year residence, was erected in late 2009 outside the stadium at the south end. Eight large murals on the exterior of the stadium were installed, each depicting four Arsenal legends linking arms, such that the effect of the completed design is 32 legends in a huddle embracing the stadium:  Around the lower concourse of the stadium are additional murals depicting 12 "greatest moments" in Arsenal history, voted for by a poll on the club's website. Prior to the start of the 2010–11 season, Arsenal renamed the coloured seating quadrants of the ground as the East Stand, West Stand, North Bank, and Clock End. Akin to Highbury, this involved the installation of a clock above the newly renamed Clock End which was unveiled in a league match against Blackpool. In April 2011, Arsenal renamed two bridges near the stadium in honour of club directors Ken Friar and Danny Fiszman. As part of the club's 125 anniversary celebrations in December 2011, Arsenal unveiled three statues of former captain Tony Adams, record goalscorer Thierry Henry and manager Herbert Chapman outside of the stadium.