Lee Radford says there are players in Hull’s reserves who would walk in to most Super League teams.
The Black and Whites made seven new signings ahead of the 2020 campaign – Josh Jones, Adam Swift, Mahe Fonua, Jordan Johnstone, Tevita Satae, Ligi Sao and Manu Ma’u.
Hull made a fine start to 2020 with a 30-4 victory at Leeds on Sunday.
Radford said: “My headache is that I’ve a couple of blokes playing in the reserves who would probably walk into most teams.
“In round one you just want to get off to a win and to do that on the back end of the work we’ve done in pre-season is obviously pleasing.
“This is the kind of side we tried to recruit and not too many disappointed.
“Our fluency can be better but a blueprint of what we signed I think showed in our performance. Now it’s about tweaking and consistently improving on that.”
Fijian speedster Ratu Naulago impressed against the Rhinos as he scored two tries.
Radford added: “He can be right up there. It’s only his second season playing rugby league.
“I thought his first year was a whirlwind, it happened so quickly, and he’s got off to a great start.
“He can go long periods without touching the ball but you know he’s going to score.”