First, at present, consulting companies are developing at a relatively fast speed, and the level of personnel inside is naturally mixed. Generally speaking, the internal personnel composition of consulting companies is divided into three layers. The first layer is the boss or partner, who is mainly responsible for the overall project thinking and billing. They are skilled, eloquent and comprehensive. The second level is mainly the project manager, who has strong communication and technical skills. The third floor is inexperienced novices, mainly handyman.
Judging from your description, the salary you gave him was 8000 yuan, so it was estimated that his income was around 6K. It is estimated that this person's level in the consulting company is not high, and his level is naturally not high. General partner level people ask for 400,000 yuan, and senior project managers ask for 200,000-250,000 yuan.
Second, the solutions provided by many consulting companies focus on the macro level and rarely involve micro-implementation and practice. So it is inevitable that he will not perform well.
It is suggested to observe whether he is not used to the environment for the time being or lacks ability.