Agree with you that the appointment of AVB is reliant on unlocking his future potential rather than an excellent track record. However, tactically AVB is excellent, (Better than Redknapp IMO), and was given a mandate at Chelsea to dramatically change the club only for the 'old guard' to step in and get him the sack. Obviously, Redknapp dramatically improved Spurs but judging by the way they fizzled out last season, partly due to his tactical naivety, I cant help thinking that he took them as far as he could have done, which I think is the reason Levy has made this appointment.