Vitor Matos says Swansea City could do more business during the mid-season transfer window following the signing of winger Gustavo Nunes.
Brazilian Nunes, 20, is in contention to make his debut at Hull City on Saturday (15:00 GMT) having joined on loan from Brentford for the remainder of the season.
He is Swansea's second January addition after Joel Ward but, with further exits also a possibility, Matos says there "could be" more incomings before the window closes on Monday, 2 February.
Swansea are keen to cut short Manuel Benson's season-long loan from Burnley, while central defender Ricardo Santos is being tipped to leave this month.
Swansea have already lost Kaelan Casey after he was recalled by West Ham, meaning they are short on centre-back options.
"It is just one month of a window, everything happens too fast, everything can change in one moment," said Swansea head coach Matos.
"What we try as a club is to find the really good deals, the best ones we can have with the conditions that we have.
"The most important thing is that we set up already the profile and what we really need. If that then becomes an opportunity on the market, we will go for that. And if not, we are fine because I'm really happy with the squad."
Swansea have confirmed the departures of two youngsters, with goalkeeper Evan Watts and defender Arthur Parker joining League of Ireland side Galway United on loan until the end of June.
They follow in the footsteps of Josh Thomas, who agreed a six-month loan at Derry City earlier this week.
