Boss Chris Wilder believes he has signed players who are a "good fit" to bring success to Middlesbrough, going into his first full season in charge.
The Teessiders just missed out on the Championship play-offs last term, after the former Oxford and Northampton boss succeeded Neil Warnock mid-season.
Ryan Giles, Liam Roberts and Darragh Lenihan have joined Boro this summer.
"I'm signing players now that I believe fit in with the thread of the football club," Wilder told BBC Radio Tees.
"I've said all along the club was certainly an incredible fit for me, and I like to think myself and my coaching staff are a good fit for the football club.