Table:
text: 2008–09 Serie A
Managerial changes
Managerial changes
Team Outgoing_manager Manner_of_departure Date_of_vacancy Replaced_by Date_of_appointment
Siena Mario Beretta Contract expired 27 May 2008 Marco Giampaolo 27 May 2008
Cagliari Davide Ballardini Contract expired 27 May 2008 Massimiliano Allegri 29 May 2008
Internazionale Roberto Mancini Sacked 29 May 2008 José Mourinho 2 June 2008
Lecce Giuseppe Papadopulo Contract expired 23 June 2008 Mario Beretta 23 June 2008
Palermo Stefano Colantuono Sacked 4 September 2008 Davide Ballardini 4 September 2008
Bologna Daniele Arrigoni Sacked 3 November 2008 Siniša Mihajlović 3 November 2008
Chievo Verona Giuseppe Iachini Sacked 4 November 2008 Domenico Di Carlo 4 November 2008

text: 2008–09 Serie A
Managerial changes
Managerial changes
Team Outgoing_manager Manner_of_departure Date_of_vacancy Replaced_by Date_of_appointment
Torino Gianni De Biasi Sacked 8 December 2008 Walter Novellino 8 December 2008
Reggina Nevio Orlandi Sacked 16 December 2008 Giuseppe Pillon 16 December 2008
Reggina Giuseppe Pillon Sacked 25 January 2009 Nevio Orlandi 25 January 2009
Lecce Mario Beretta Sacked 9 March 2009 Luigi De Canio 9 March 2009
Napoli Edoardo Reja Sacked 10 March 2009 Roberto Donadoni 10 March 2009
Torino Walter Novellino Sacked 24 March 2009 Giancarlo Camolese 24 March 2009
Bologna Siniša Mihajlović Sacked 14 April 2009 Giuseppe Papadopulo 14 April 2009
Juventus Claudio Ranieri Sacked 18 May 2009 Ciro Ferrara 18 May 2009

Question: What was the date of Lecce manager's appointment when the previous manager's contract expired for the 2008-09 Serie A managerial changes?