IRRESISTIBLE fast bowling by captain Wasim Akram and Waqar Younis, who shared nine wickets, swept Pakistan to a 52-run victory over Zimbabwe in the second Test in Rawalpindi yesterday. Zimbabwe, needing 240 to win, collapsed from 135 for one to 187 all out with 4.4 overs to spare on the fifth and last day, giving Pakistan a 2-0 winning lead in the three-Test series. Akram and Waqar clinched victory by mopping up Zimbabwe's last five wickets for 40 in 16 overs after tea. Pakistan's skipper, returning after a wrist injury kept him out of the first Test, captured five for 65 while Waqar, who led the side to a 131-run win in the opening match in Karachi, took four for 50. Waqar, who had a 13-wicket haul in the first Test, has now taken 22 wickets in the series. Zimbabwe, having ended Pakistan's second innings for 248 in the morning, threatened to pull off a stunning victory under the influence of a second-wicket partnership of 135 between Mark Dekker, who carried his bat for 68, and Alistair Campbell, who made 75. Meanwhile, on the wider Test scene, the scheme to set up an international panel of umpires could be in place for England's New Year tour of the West Indies. The International Cricket Council are due to announce ''an important new international cricket sponsorship of interest to the nine Test match countries'' on Tuesday next week. The announcement has been interpreted as meaning the cash has been found to pay for the panel. The idea was drawn up in 1991 after repeated accusations of home umpires showing bias against touring sides. A panel would see Tests controlled by one home country umpire and a 'neutral' official from overseas. A pilot scheme, financed by British electricity company National Grid over the past year, saw Dickie Bird standing in Tests between West Indies and Pakistan. Anticipating the formation of an international panel, England have not yet appointed their umpires for next summer's home Tests against New Zealand and South Africa.