A number of Celtic's key players are being hunted by teams across Europe, according to reports.
The likes of Virgil Van Dijk and Stefan Johansen have both been linked with moves away from Parkhead in the Daily Record of late, but Deila is determined to keep the bulk of his squad together.
Although the Norwegian acknowledges that there are likely to be some departures at Celtic this summer, he wants to keep the core of his squad intact and is planning to bolster his ranks, rather than deplete them.
He said: “For me, it’s about keeping players, that’s the most important thing. We need consistency as the players here are good enough to get us to the Champions League - that’s what we believe.
“But we want to try to get the squad even stronger and make it even more competitive, so we want some players to go out and some to come in, if they are the right ones.
“But the most important thing is to continue developing the players we have and believe in them, because the same players who were having a hard time, together with the staff and me, at the beginning of the season are still here and doing very well now."
When Deila took charge of Celtic, it took a while for the squad to react to his demands and they started slowly.
A poor Champions League qualification campaign remains a source of frustration, but making amends in 2015 is clearly high on the club’s list of priorities as they endeavour to make it back to the group stage.
Celtic need the money generated from Europe’s premier club competition if they are to keep hold of their most sought-after talent, and they realise that no amount of domestic success will be enough to convince them to stay if Champions League football is not on offer.
If the Bhoys can continue to add to their squad then they should be in a strong position to hit their targets, as they have shown great improvement throughout the season and now look to be capable of troubling any side on their day.