One positive for the boss to consider during his return to Merseyside is the comeback to competitive action of Coutinho, who completed 45 minutes on Saturday.
"To get even 45 minutes out of him was good because he only got clearance on his shoulder on Tuesday," said the Northern Irishman.
"So there's no way he could have been able to play more than the length of time that he did.
"The system that we have been playing has worked really well and I think in every system you can get exposed, and in the system that we play that can happen on the sides.
"In parts of the first half, I wasn't so happy because they had good possession and were able to exploit us in that area - hence the reason why we made the change."
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