I think Fry will learn a lot from today. Lukaku bullied him in the first half and I don't really think he knew how to handle him. Bamba was unbelievable in the second half, I think he still has something to offer this team on the pitch.
I thought it was tactical at the time because Fry was bullied at times by Lukaku in the first half. I was thinking it was a great substitution by Wilder but seems it was an enforced change.