Complex sentence: Sir Kevin spent 15 years teaching in Liverpool and four (4) years as a head teacher in Wolverhampton, but it is his stewardship of Thomas Telford over the past 10 years that has put him in the spotlight.
Split into simpler sentences: Sir Kevin spent 15 years teaching in Liverpool and four (4) years as a head teacher in Wolverhampton. But it is his stewardship of Thomas Telford over the past 10 years that has put him in the spotlight.