Raul will depart Madrid after six seasons at the helm of the reserve team, where he delivered a consistently commendable performance. Under his leadership, Castilla came heartbreakingly close to promotion to the Segunda Division, narrowly losing in the playoffs to Eldense during the 2022–23 campaign. Although this season began on a disappointing note, with many tipping the team for relegation to the fourth tier, Raul once again proved his managerial mettle. He steered Castilla to a strong sixth-place finish, just shy of a playoff spot, defying expectations and reinforcing his credentials as a promising manager.