Complex sentence: After joining Pricewaterhouse Coopers he was send to London for training as a chartered accountant, but later switched his focus to consulting and was posted to Shell in Nigeria for three years in this capacity.
Split into simpler sentences: After joining Pricewaterhouse Coopers, he was sent to London for training as a chartered accountant. He later switched his focus to consulting, and was posted to Shell in Nigeria for three years in this capacity.