Williams and Phillips have both been better than I expected but they are still a fair distance from what we need, at the moment, especially in Europe. They are both good squad options but looking at how injury prone both Matip and Gomez are one more quality CB would be perfect and the thought of Schuurs and Virgil at the heart of the defence for years to come is a very nice one.
By the time we see Virgin play again he may be 30 at that point, so he won't be around as long as you think. Schuurs and Gomez would be the 1st pair of the future, but i would like someone more reliable than Matip as the 3rd CB.
Rhys and Phillips sure have given Klopp and Edwards something to think about, particularly Rhys, so it will be interesting to see if we bring in another CB or not.