Mauricio Pochettino insists his book has not caused problems with Tottenham's players but says he could leave out anyone who finds reason to complain.
Spurs are enduring a difficult run of form, with Tuesday's defeat to Leicester meaning they have registered only one victory in five Premier League matches.
The dip has also coincided with the release of Pochettino's book, 'Brave New World', which documents his time in charge of Tottenham.
Since the first extracts were released in the middle of October, Tottenham have won only four of their 10 games, while before the book came out they managed eight victories in 11.