The Romans Never Imagined That Nomads Would Reach the Centre of Anatolia

When did the possibility pass for good of grinding the turks down alla the pechenegs and incorporating them into the roman blood stream? So here we are. Since the romans never imagined that nomads would reach the centre of anatolia, i'm sure advice could have been given on how best to fight the turks under this new circumstance. But the romans had not ye discovered how to fully defeat them. The fact that the towns of easten anatolia were in moslem hands made the task virtually impossible. How do you trap an army when they have hundreds and hundreds of miles to manoeuvre in?