how many managerial changes were there in 2009?
13
col : name | club | date of departure | replacement | date of appointment row 1 : jadet meelarp | chonburi | january 2009 | kiatisuk senamuang | january 2009 row 2 : kiatisuk senamuang | chula united | january 2009 | carlos ferreira | january 2009 row 3 : prajuk viengsong | ttm samut sakhon | january 2009 | attaphol puspakom | january 2009 row 4 : attaphol puspakom | ttm samut sakhon | april 2009 | kij meesrisuk | april 2009 row 5 : surasak tansurat | muangthong united | april 2009 | attaphol puspakom | april 2009 row 6 : prapol pongpanich | pea | may 2009 | thongsuk sampahungsith | may 2009 row 7 : hans r. emser | bangkok glass | june 2009 | surachai jaturapattarapong | june 2009 row 8 : pansak ketwattha | pattaya united | june 2009 | wisoon wichaya | june 2009 row 9 : christophe larrouilh | bec tero sasana | june 2009 | tawan sripan | june 2009 row 10 : wisoon wichaya | pattaya united | june 2009 | jadet meelarp | june 2009 row 11 : carlos ferreira | chula united | august 2009 | pichai pituwong | august 2009 row 12 : kij meesrisuk | ttm samut sakhon | august 2009 | prajuk viengsong | august 2009 row 13 : chatchai paholpat | nakhon pathom | september 2009 | piyapong pue-on | september 2009
how many managerial changes were there in 2009?
Name Club Date of departure Replacement Date of appointment
Jadet Meelarp Chonburi January 2009 Kiatisuk Senamuang January 2009
Kiatisuk Senamuang Chula United January 2009 Carlos Ferreira January 2009
Prajuk Viengsong TTM Samut Sakhon January 2009 Attaphol Puspakom January 2009
Attaphol Puspakom TTM Samut Sakhon April 2009 Kij Meesrisuk April 2009
Surasak Tansurat Muangthong United April 2009 Attaphol Puspakom April 2009
Prapol Pongpanich PEA May 2009 Thongsuk Sampahungsith May 2009
Hans R. Emser Bangkok Glass June 2009 Surachai Jaturapattarapong June 2009
Pansak Ketwattha Pattaya United June 2009 Wisoon Wichaya June 2009
Christophe Larrouilh BEC Tero Sasana June 2009 Tawan Sripan June 2009
Wisoon Wichaya Pattaya United June 2009 Jadet Meelarp June 2009
Carlos Ferreira Chula United August 2009 Pichai Pituwong August 2009
Kij Meesrisuk TTM Samut Sakhon August 2009 Prajuk Viengsong August 2009
Chatchai Paholpat Nakhon Pathom September 2009 Piyapong Pue-on September 2009
13