I dont think we have an old side, certainly not to the extent that City are now and Chelsea/ Utd were a couple of years ago. Id say by and large most of pur core first XI are in their peak years. But will have to start moving on some of the older players in the next season or two. Milner, Lallana and Lovren are really the only ones clearly past their best and none of them are first teamers.
In a year or two Henderson, Gini, Shaq and Firmino will likely be post prime. Midfield is clearly the biggest concern as the younger recruits (Keita, Grujic, Ox) dont seem capable of displacing the establiahed players based on what weve seen so far.
Allowing a squad to age out is very much a sign of short term management. When Utd were at their best Ferguson ruthlessly culled players who had lost a step to keep the team evolving and make sure nobody got complacent. In the last 5 years he stopped doing that persisted with his stallwarts and stuffed their squad with established expensive players that didnt have much long term value. The result is what you've seen over the last few seasons, he hollowed them out. Same is now happening at Madrid.
Its a lesson worth paying attention to, we should refresh from a position of strength over the next 2 years while slowly building up promising young players like Hoever, Kelleher, Eliot etc
