Former Celtic striker Cillian Sheridan has one key concern about Wilfried Nancy and his setup.
Sheridan, who spent over four years on the books at Parkhead, believes opposition managers are working out Nancy's tactics in the first half and making changes as a result in the second.
On the BBC's Scottish Football Podcast, Sheridan said: "If there was a possible worry, it would be that teams seem to kind of suss them out at half-time.
"Managers at other clubs are making tweaks at half-time, and suddenly the second half is becoming a different game.
"That maybe would be my only concern. But I think it just comes down to taking chances."
No such second-half drop-off that Sheridan is referring to was evident on Sunday as Celtic defeated Aberdeen 3-1.
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The win marked the first of the Nancy era.
After the match, Nancy himself said: "We had so many chances, and there could have been many, many goals.
"Suddenly, against 10 men, you concede a goal like this, I think we could have been down, but they [players] didn't do it.
"They kept attacking, attack, attack, attack, with waves, waves and waves.
"I think that the two goals that we scored are the reward of the grit and the resilience that they showed.
"Knowing the fact that, obviously, we lost so many games and they were able to come back and to be shown, this is something that I really enjoyed seeing."
Celtic return to action on Saturday as they travel to face Livingston in the William Hill Premiership.
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