"Does changing the coach really make a struggling team shine again?" This question must have been on the minds of West Ham United fans countless times after hearing that Lopetegui was sacked and Potter took over. For a team hovering near the relegation zone, changing coaches is sometimes like betting, not knowing whether it's "winning big" or "losing all hope." And for Potter, this is more like a second venture full of unknowns. The news of Lopetegui's dismissal is not surprising. As the former head coach of West Ham United, his record during this season's coaching tenure is simply disappointing - the league ranking is close to the relegation zone, and the English League Cup was eliminated early. This team with huge investment not only failed to break through but fell into deeper trouble, making people wonder if this is still the historically renowned "Hammers"? Therefore, the decision-making level of the club chose to change coaches, which is not unexpected, but this decision seems to have come somewhat hastily and with a hint of helplessness. Speaking of Lopetegui, many fans would sigh, "This guy's luck is really too bad." He has coached many top teams - the Spanish national team, Real Madrid, Porto - but the results always fall short of success. He was sacked by the Spanish team shortly before the World Cup started because news of him coaching Real Madrid leaked in advance, directly ending his national team coaching career. And when he arrived at Real Madrid, the results did not meet expectations, and he was soon fired.…