The criticism and calls for Infantino's resignation have grown despite FIFA withdrawing the proposal just four days after announcing it.The 56-year-old Swiss lawyer had looked set for a fourth and final term taking him up to 2031, as he was due to be unopposed in next March's election in Rabat.The question is whether the opposition can rally round one candidate with the deadline for nominations November 18.The name most frequently mentioned as a potential challenger or successor is Victor Montagliani, president of CONCACAF, which governs football in North and Central America and the Caribbean. An emboldened opposition could also move sooner than that and call for an emergency meeting of the FIFA Council.That would require the backing of 19 of the 37 members of the FIFA Council, triggering a meeting that must be held within two weeks.In theory, the opposition has the numbers to force such a meeting, as the three confederations who were scathing of Infantino's leadership control 21 seats on the council.European football's governing body UEFA has nine members, the Asian Football Confederation (AFC) has seven, while CONCACAF boasts five.There is another more radical option, but one that is conceivable given the backlash: a no-confidence vote in Infantino.An extraordinary FIFA congress can be held if 20 percent of the 211 members associations formally request it in writing.It would take the support of just 43 member associations to spark such a move, a threshold that could easily be assembled from UEFA (55 members), CONCACAF (35) and AFC (46). For the moment, just Wales, Finland, Sweden and Serbia have publicly withdrawn their support from Infantino.Morocco, co-hosts of the 2030 World Cup, are one of the few to voice their support for the president. Should it come down to a leadership contest, Montagliani appears the obvious challenger as a non-European candidate. Europe has held the post since Sepp Blatter was elected in 1998. UEFA president Aleksander Ceferin and Norway's football chief Lise Klaveness -- who would be the first woman elected as president -- have both ruled themselves out in the past.Victor Montagliani