England are getting quite weak with their bowling, if they improve themselves in that they can be strong for them, but they have already lost 2 matches and lost the series. They come close to the target and lose the match, due to which South Africa has become quite strong and it is disappointing for England that they are not succeeding in any way. England has become weak now, they are not strong against India and South Africa. If you look at the competition against India they are already a very strong team, but there was no hope against South Africa due to which I am very disappointed with the hard work and effort of England. South Africa has given a very big target in both their matches, due to which it is difficult for England to score runs and achieve them, which is why they are failing.
James Anderson has retired. Jofra Archer is a shadow of his former self. Mark Wood hasn't played any form of cricket for the last 6 months or so. Chris Woakes was also missing from the squad. Given all this, I would say that the poor performance from the England bowlers was more or less expected. Brydon Carse and Saqib Mahmood did their best, but they are not of the same league as Wood or Woakes. After the South Africa series, England will play a bilateral against Ireland. The younger bowlers may feel more comfortable in that series.