Liverpool have already to qualified to round of 16 i think they shouldn't be pushing theirself to win all of the matches on Group phase so when the matches against Lille and PSV i think Liverpool should be give their chances for their reserved players or their young players to playing on these matches and rested some of their main players to ensure all of Liverpool players in the good fitness when facing knockout stages later and starting from now i think Liverpool can be more focus for Premier League matches to secured first place so i think this is more important rather than targetting 8 winning streak in this competition
Yes, they can rotate in the next match, not necessarily all, but they can do it in 45 minutes for example. They can play the main players in the first 45 minutes, after that they can rotate by giving opportunities to other players. Or they play with players who are not the main squad, after that they can start to put in the main players. This can be very beneficial for them, because then they will be able to be more flexible in facing the tight schedule that they play. Because like it or not, the tight schedule has a big impact on the players' physical condition, and they can take advantage of this opportunity to be able to maintain the physical condition of their players.