Like I said, it depends on several factors. And mind you, Conte and to an extent Sarri, managed to get good contribution out of those defenders you mentioned there. In Alonso's case, it's his physical attributes that let him down but that can't be helped.
In the long term, probably not. Short term, possibly.
Having said that, I am not sure whether Terry and Lampard will be able to co-exist within the same coaching team. Not sure if they will have the right dynamic.