LONDON : Oscar Piastri's rift with Alpine has also forced a change of plan at Williams and could have a knock-on effect around the Formula One paddock.While the main focus has been on Renault-owned Alpine and McLaren, who both want the 21-year-old Australian to drive for them next season, tail-enders Williams have had to reassess their next step.Alpine's original plan was to loan their reserve, and last year's Formula Two champion, to Williams for at least a year and possibly more until he returned as Fernando Alonso's replacement.The principle was the same as when Mercedes placed George Russell for three seasons at Williams to learn the ropes before bringing him back as team mate to seven-times world champion Lewis Hamilton.Talks were so far advanced that the Australian had a seat fitting at Williams and a contract for 2023 was drawn up between the two teams, with Alpine having already agreed Piastri's salary.Then Alonso decided to race for Aston Martin next year and Piastri, offered the Alpine seat, said no - with a McLaren deal apparently more tempting.Piastri would have replaced Canadian Nicholas Latifi at Williams, the only driver on the starting grid who has yet to score a point in 13 races this season, alongside British-born Thai Alexander Albon.Latifi brings sponsorship and could potentially retain the seat, with many of the potential replacements lacking such financial clout.With Alpine currently fourth in the championship and Williams last, the seat spurned by Piastri is the more attractive.If Alpine do not take McLaren's soon-to-be-discarded Australian Daniel Ricciardo, then they may be in the same market as Williams.One possibility who stands out is current Formula E champion and 2019 Formula Two title-holder