Singapore's national teams head coach Bernd Stange is a man under scrutiny.

On his appointment in 2013, the German, who formerly coached Belarus and Iraq, inherited a national side who were the reigning Asean champions. The team also had a host of promising youngsters. But two years on, Singapore football is sinking to new depths.

The Lions were dumped out of last year's Asean Football Federation (AFF) Suzuki Cup in the group stage and have won just once in their last five matches. Although Stange's Lions have won nine of the 23 matches under his watch, most of them have come against minnows such as Cambodia and Laos.

Also alarming is the form of the national Under-23s and U-22s. Both teams, who Stange oversees as national teams head coach, suffered a string of embarrassing defeats. On Tuesday, Lions captain Shahril Ishak and Co., ranked 153rd by Fifa, could only manage a 2-2 draw against world No. 167 Guam. The U-22s also stumbled to a draw by the same scoreline against unfancied Mongolia, whose senior side are ranked 195th. Tellingly, the senior, U-23s and U-22s, combined, have yet to win a single game in 2015, a record that spans 15 matches.

Fans have called for Stange's dismissal and an overhaul at the Football Association of Singapore. But how does he fare against some of his predecessors?

Here's a look at how his record compares with former Lions coaches. Take our poll below.

Barry Whitbread (June 1995 - November 1998)

Played 31
Won 13
Drew 9
Lost 9

Win percentage 41.9%
Goals scored 45
Goals conceded 33

Average Fifa ranking: 95

Notable results: Drew Lebanon 1-1 (1997, World Cup qualifier), Beat Vietnam 1-0 (1998 AFF Cup)

Low points: Lost to Kuwait 0-4 (1997, World Cup qualifier)

Honours: 1998 AFF Cup

Vincent Subramaniam (December 1998 - December 2000)

Played 23
Won 11
Drew 3
Lost 9

Win percentage 47.8%
Goals scored 23
Goals conceded 20

Average Fifa ranking: 102

Notable results: Beat Malaysia 2-1 (1999, friendly), Beat Malaysia 3-1 (2000, friendly)

Low points: Lost to Qatar 1-5 (2000, friendly)

Jan Poulsen (December 2000 - January 2003)

Played 23
Won 8
Drew 3
Lost 12

Win percentage 34.8%
Goals scored 20
Goals conceded 39

Average Fifa ranking: 116

Notable results: Drew Kuwait 1-1 (2001, World Cup qualifier), Beat New Zealand 3-0 (2001, friendly), Beat North Korea 2-1 (2002, friendly)

Low points: Lost to Malaysia 0-4 (2002, AFF Cup), Lost to Thailand 0-5 (2001, friendly)

Raddy Avramovic (July 2003 - December 2012)

Played 147
Won 53
Drew 27
Lost 67

Win percentage 36.1%
Goals scored 190
Goals conceded 216

Average Fifa ranking: 123

Notable results: Beat Iraq 2-0 (2006, Asian Cup qualifier), Drew Australia 0-0 (2008, friendly), Beat Jordan 2-1 (2009, Asian Cup qualifier), Beat Thailand 1-0 (2009, Asian Cup qualifier)

Low points: Lost to Iraq 1-7 (2012, World Cup qualifier), Lost to Oman 0-7 (2004, World Cup qualifier), Lost to Saudi Arabia 0-7 (2003, Asian Cup qualifier)

Honours: AFF Cup (2004, 2007, 2012)

Bernd Stange (May 2013 - present)

Played 23
Won 9
Drew 3
Lost 11

Win percentage 39.1%
Goals scored 33
Goals conceded 42

Average Fifa ranking: 154

Notable result: Beat Syria 2-1 (2013, Asian Cup qualifier)

Low points: Drew Guam 2-2 (2015, friendly), Drew Macau 2-2 (2014, friendly), Lost to China 1-6 (2013, friendly)