This is the mistake newly promoted club side makes every year. They believe in working hard.
Newly promoted club sides need to sign quality players first before working hard. And the new signings doesn’t have to be expensive; they need to be a blend of experience and quality signings.
Staying in the la liga after years in the relegation requires grit, experience and quality signing’s; signing loan players won’t work.
Good luck to Real Oviedo

Are you joking? Since when a player with cheap price has quality? I meant the price is always going stright to the quality of players.
Real Oviedo has very small revenue operation averagely 15m - 20m. It's impossible to sign quality players with such revenue.
They have also operational cost needs to be covered. They can only afford mediocre - amateur football players to be signed.
Their operating revenue is also far less compared to the teams which recently relegated such as Valladolid, Las Palmas, and Leganes.