The Tykes were looking to push on in the top half of the table in Hill's first season in charge last year before losing Danny Drinkwater to Leicester and Ricardo Vaz Te to West Ham during the January transfer window, while fellow midfielder Jacob Butterfield sustained a season-ending knee injury before being sold to Norwich in the summer.
Hill, who hopes to tie down the likes of Craig Davies, Luke Steele, Tomasz Cywka, Scott Wiseman and Jim McNulty in the next few weeks, said: "There's been no progress yet. I've made my recommendations to the board and it's out of my hands at this moment in time.
"We've just got to progressively keep nudging and keep trying to secure the services of these players because I don't want to be in a position where I'm trying to build a team for the second half of the season as a result of losing players in January.
"The ramifications of what happened last season could quite easily have been relegation. But you've got to accept it. Players are commodities, in their own minds, in their own rights as well, and you've got to make hay while the sun shines.
"When players are in good form there is the possibility that those players will wait and see what happens as well. You try and plan to avoid significant damage being done and that's what we do, we did a lot of foundation work last season, a lot of it not seen and we feel as though we're in a good position to build for the future of Barnsley Football Club and we just don't want to see it destroyed."