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On a similar note to the previous page, the Swansea game showed the merits of a more proactive in-game approach from Villas-Boas.
The recent loss to Liverpool was particularly frustrating as had Tottenham changed things up earlier, they may have stopped the Reds' gathering, ultimately costly, momentum—though there was little the Spurs manager could have done about the mistakes that led to the opposition's goals.
There is, of course, no guarantee substitutions will work. Against Inter Milan, Villas-Boas was quicker with his changes and his team arguably played worse.
Generally, though, being proactive can have a positive effect.
Swansea may have scored after Jermain Defoe replaced Emmanuel Adebayor, but that was hardly the fault of the striker. Defoe was far livelier than his fellow forward, and Spurs would likely have fared worse without him giving them a more energetic outlet upfront.
Similarly, Holtby's arrival for Gylfi Sigurdsson gave the team extra tenacity in midfield, with the German helping to upset Swansea's flow.
It is ultimately down to the players, but sometimes managers are better served by showing initiative and actually managing.