You have heard the phrase,

To a man with a hammer, every problem looks like a nail. ​

Well this is how it applies to leadership. If you have just one tool (i.e. leadership style) in your tool kit, you'll default to using this even when the situation demands a different approach and the results will be sub-optimal. 

​It's kind of like trying to saw a plank of wood with a kitchen knife, or put up a shelf with a spanner. You get the picture.

'Do you regularly work 50 hours a week or more? Eat lunch at your desk?

Take work home and on holiday with you?  

​Perhaps there is a good business reason for this, a big project you need to land, a complex negotiation or an immovable and impending deadline. But if it's business as usual and you find this pattern is the norm, it’s time to ask yourself what or whom is driving this behaviour?