The Royal Navy escort replacement bottleneck

Does the shrinking Type 23 fleet become a crisis if HMS Glasgow does not commission on schedule?

The crisis already exists because the Type 23s are overdue for replacement, and any delay to HMS Glasgow makes it worse.

The Type 23s have already served far beyond the lives expected of their lightly built hulls. They should have begun leaving service about a decade earlier, so their declining availability is already a crisis. A delay to HMS Glasgow would deepen the shortage rather than create it.