Derby County’s squad is full of both experienced veterans and promising youngsters which worked well in League One.
However, it will well documented that improvements will be made to the team before they begin life in the Championship again as they need more quality and depth.
Paul Warne has previously admitted that he will be looking at the free agent market this summer to try and bolster his side.
There are a number of Championship free agents that he could target, but he also may look back into League One.
So here are 12 possible League One free agents that the Derby boss could look to add this summer.
Paul Warne has previously admitted that he will be looking at the free agent market this summer to try and bolster his side.
![Mandroiu is very well regarded in League One. The Lincoln midfielder has plenty of attacking quality and is a really special player. The 25 year old scored eight goals and recorded five assists this season, he could prove to be a replacement for Max Bird.](https://www.thestar.co.uk/jpim-static/image/2024/01/18/11/36/Danny+mandroiu.jpg?crop=3:2&trim=&width=800)
9. Attacking midfielder: Danny Mandroiu
Mandroiu is very well regarded in League One. The Lincoln midfielder has plenty of attacking quality and is a really special player. The 25 year old scored eight goals and recorded five assists this season, he could prove to be a replacement for Max Bird. | Getty Images
![With Callum Elder being the only natural left back on the squad, it is a position that Paul Warne is likely to invest in. Blackpool's captain would provide some experience and also previous Championship experience with Fulham.](https://www.thestar.co.uk/webimg/b25lY21zOjEyNmUyMjEwLTZkZmItNDkzMi1hNGRiLWNjNDk0YjM4MGNkNDphYTNjN2Y5NS0xNmMzLTQ3YzQtYjNkYi02MDUxNGM3MTIzZmE=.jpg?crop=3:2&trim=&width=800)
10. Left back: James Husband
With Callum Elder being the only natural left back on the squad, it is a position that Paul Warne is likely to invest in. Blackpool's captain would provide some experience and also previous Championship experience with Fulham.Photo: CameraSport - Lee Parker
![Sherring was one of the best-rated centre backs in League One last season. The 24 year-old would be a more long-term option too thanks to his fairly young age.](https://www.thestar.co.uk/webimg/b25lY21zOmNkN2MzNGFjLTNiNjEtNDJjMi1hYTdjLWJhYWFlMzBlYWIwNTplODVmYmI0MS0wNTg2LTQzZmEtYTBiOC0xM2QwNGU0NDMxYWU=.jpg?crop=3:2&trim=&width=721)
11. Centre back: Sam Sherring
Sherring was one of the best-rated centre backs in League One last season. The 24 year-old would be a more long-term option too thanks to his fairly young age. Photo: Pete Norton
![Kerr is another quality centre back that could become a free agent this summer. Injury problems this past season means that he likely won't sign a new deal at Wigan and so could be a valuable pickup for the Rams.](https://www.thestar.co.uk/webimg/b25lY21zOjQ1NWVkYWFmLWU1OGYtNDJhYi1iY2U4LTBkNmFkZDNhZjRlYjo0NmI2YmJhYy01OGY3LTRiYjQtOGU1ZC01ZDRmYTQ4YmFiZjk=.jpg?crop=3:2&trim=&width=800)
12. CENTRE-BACK: JASON KERR
Kerr is another quality centre back that could become a free agent this summer. Injury problems this past season means that he likely won't sign a new deal at Wigan and so could be a valuable pickup for the Rams. Photo: BP