Mauricio Pochettino has got a lot right in the past few months at Tottenham Hotspur.
After a poor start to his tenure, the Argentine stayed calm and galvanised the Spurs squad on to an impressive run of form which has launched them right into top-four contention.
However, against Crystal Palace he most be held partly responsible for their defeat due to his strange choice of substitutions during the contest.
Pochettino brought on Etienne Capoue for Andros Townsend and Roberto Soldado for Benjamin Stambouli in Spurs's 2-1 defeat to Palace and his tinkering seemed to have a detrimental impact on the side, rather than offering them a helping hand.
The addition of Capoue for Townsend was clearly one which had been prepared to keep Spurs's lead intact, but these plans were rather scuppered when Palace equalised as the Frenchman was warming up.
Pochettino then should have adjusted his methods, rather than proceeding to go through with them, as Capoue's arrival on the field simply limited Spurs's threat.
A draw would not have been a disastrous result for the Lilywhites, but Capoue's introduction limited their attacking threat and saw them pressed back by the pace of Palace's attacking stars.
Pochettino's response to this was to bring on Soldado, but the front man has shown little reason to trust his quality.
In the end his introduction only further stifled Spurs's play and the host's pressure paid dividends with Jason Puncheon blasting in to complete the turnaround.
All this occurred while Aaron Lennon was sitting on the bench and, although he may not be the answer for Spurs, his pace would likely have been far more of a threat than Soldado turned out to be, with Palace's defence tiring.
With Kane on the pitch, Spurs carry enough goalscoring threat and they arguably needed someone to create chances for him on the pitch, rather than the addition of another poacher.
Pochettino has deservedly taken a lot of credit of late and the side are making huge strides under his stewardship, but this was a strange decision from him and he was likely to have left Selhurst Park wishing he had utilised other options from the substitutes' bench.