 My biggest challenge in my last job that I faced was we were severely understaffed where we had almost over 200 calls a day at a call center and working with only one or two people, the best you could do was just take a breather and answer the call one at a time, know that you are helping at least some clients and even though the clouds are being dropped, just writing down the numbers and calling them back, even if it's the next day or the few days, but making sure the clients were taken care of.