Ibrahima Konate, Denzel Dumfries, Bernardo Silva and Marc Cucurella arrive in the same roles once occupied by Dean Huijsen, Trent Alexander-Arnold, Franco Mastantuono and Alvaro Carreras.
The repetition appears deliberate, with some of last year's signings falling short of expectations, forcing the club back into the market for positions it considered settled only 12 months ago.
Huijsen's case is the most telling. The centre-back endured an up-and-down first year at the Santiago Bernabeu and was left out of Spain's World Cup squad, a snub that left Real Madrid without a single representative at the tournament until Cucurella's call-up was confirmed.
Alongside Huijsen, Real Madrid have brought in Ibrahima Konate on a free transfer from Liverpool, bringing top-level experience to a defence short on composure amid a heavy run of injuries.
Jose Mourinho is understood to want further reinforcement in the position and has asked for a second recognised centre-back to add defensive assurance.
At right-back, the arrival of Denzel Dumfries keeps Alexander-Arnold on alert.
The Dutchman offers a more experienced and contrasting profile, better suited to a wing-back role and exploiting the space in behind rather than matching the Englishman's quality on the ball.
Dumfries fell at the first knockout stage of the World Cup with the Netherlands but produced strong performances along the way, offering an alternative option in a position many had assumed was settled following Dani Carvajal's departure.
Franco Mastantuono's situation is perhaps the one that should cause least concern given his profile and adaptability.
Bernardo Silva arrives to operate centrally and close to the base of midfield, as he did at Manchester City, rather than out wide where Mastantuono has occasionally featured.
The Argentine will use pre-season to establish where he fits into Mourinho's plans, with the Portuguese coach also able to call upon Brahim Diaz, an injured Rodrygo who remains sidelined for several months, and Endrick, who played out wide during his time at Lyon.
The most eye-catching situation belongs to the latest arrival, Marc Cucurella, who now competes directly with Alvaro Carreras, signed for €50million only last summer.
It is unusual for Real Madrid to make two major investments in the left-back position in consecutive seasons, but Cucurella offers both current form and an immediate fit with Mourinho's ideas.
It would be a surprise if he did not start the season ahead of Carreras, who ended his first year in the Spanish capital in a supporting role.
Four signings, four positions strengthened barely a year after they were first addressed, meaning Huijsen, Alexander-Arnold, Mastantuono and Carreras all begin their second seasons facing direct internal competition.