今の取引先から新しいところに変えるのは難しいって英語でなんて言うの？

"今の取引先から新しいところに変えるのは難しい" - It's hard to change from my current supplier to my new one. - It's difficult to change to a new supplier. これじゃなきゃダメというすごくいい商品があるので、それ以上に良い商品を持ってこない限り変える必要がありません - There's a product that is really good and cannot be replaced with another so unless they bring a product that is even better, there is no need to change it.