Warning: The following post contains spoilers relating to Season 2 of The Traitors (UK).Don’t read on if you don’t want to know what happens.

Like many people in the UK, I’ve been gripped by reality show The Traitors over recent weeks. For anyone who’s not seen it, the premise is simple – a group of 22 people stay in a castle, with 3 of them secretly nominated as Traitors, the others known as Faithful. Each day a round table discussion, to identify who might be a traitor, is held where the contestant with the most votes is banished. Each night the Traitors can ‘murder’ a contestant who is then eliminated from the game.( If a traitor is identified, the remaining traitors do have the option to recruit a faithful rather than murder). By the final day, if a Traitor remains they take the entire prize pot, if only Faithful remain they share the prize between them.

So what’s that got to do with people management, I hear you ask? Quite a lot, surprisingly. Here are 5 HR lessons from The Traitors

• You cannot make decisions on ‘gut feel’

Every day, the contestants who were favourites for banishment were ones who people had become suspicious of. It might be that they were too quiet,  too loud, said the wrong thing or just on the first impression they had given others. How may times have you interviewed a job candidate who has been selected or rejected on exactly those criteria? It’s well known that interviews conducted in this way have a hopeless success rate and The Traitors proved that – they found no traitors at the round-table except when another Traitor used their inside knowledge to betray one of their colleagues.

• Diversity initiatives mean nothing if the underlying culture is still wrong.

The Traitors contestants were possible the most diverse you could find – there were people of all races, sexuality, age and disability. Yet the Traitors themselves became a very male dominated group who (I suspect unconsciously) targeted the women in the group for murder. This came to a head when eventual winner (and traitor) Harry explained that the reason Faithful contestant Diane had been murdered was because she was “getting too clever, so she had to go”. Similarly non-white traitors were set up to be betrayed. Even presenter Claudia Winkleman commented on the ‘boys club’ atmosphere. It shows that changing entrenched attitudes and culture is a lot more difficult that simply a few diversity activities, even if on the face of it they seem to be successful.

• It’s very difficult to go against charismatic characters.

Traitor Paul was early on voted the ‘most popular’ in the group, and used this position of being liked and respected to his advantage to deflect suspicion onto others. The other contestants put more weight on his views, many refused to entertain the idea that he might be a Traitor, and it empowered him to take calculated risks secure in the knowledge he would not be challenged. How many times in a work environment have you seen people defer to a powerful boss, even when they know the boss is wrong?  Being a charismatic leader is not a good thing if the leader’s intentions are bad.

• Whistleblowing requires courage

In the same vein, one particular contestant  (Jas) identified two of the traitors relatively early on, but was reluctant to voice his suspicions for fear of potential reprisals. Even at the end, when it was inevitable, he still raised his concerns in a hesitant fashion. It is a worthwhile reminder that despite legal protections, whistleblowers are still often unwilling to go against the group because of the personal consequences, and why HR people should always be supportive.

• Teamwork works – but only if everyone is working to the same end.

To increase the prize pot, contestants had to undertake “missions” that required them to work together. Being a traitor or faithful did not matter as the common aim was to win as much money as possible. When this worked (particularly in the final challenge) it was a text-book example of how effective teams support each other and work effectively. Where it didn’t (particularly where contestants were able to win themselves individual protection from murder), team members had to balance their own agenda with the group objectives. Often in a work environment we’ll see the same – people pushing individual gain against team targets.

So at the end of the day, The Traitors is a reality show designed for entertainment. But it does provide some useful pointers of how people behave in group situations – just like they do in work.