When coaching athletes of any kind, the coach must consider several factors: The athlete's level of training experience Biological and chronological age Current physical condition Physiological and movement specific components of the sport they participate nutritional needs Injury history External life stressors Internal and external forms of stress can profoundly impact adaptive progress and athletic performance. Thus, you should consider the management and manipulation of both physiological and psychological stress when designing a training program for athletes. When introduced to a new athlete, the coach should begin by learning the athlete's training, medical, and injury history and investigate their diet and social constraints that may influence training. Following the interview process, the coach should guide the new athlete through a thorough movement assessment, collecting visual data on strengths and weaknesses for future corrective exercise implementation. Moreover, research on the athlete's sport may be immensely beneficial before the coach begins his or her programming. By evaluating the physiological components of the sport, such as intensity and duration of playtime, as well as the movements and anatomical positions frequently employed within the sport, the coach can gain a greater knowledge and understanding of what will improve performance outcomes in their new client. From there, the coach can begin designing a program tailored to enhance the athlete's general and sport-specific strength, power, and conditioning, with consideration of the sports season/phase.
(2) YOU LEARN AND IMPLEMENT “SPORT SPECIFICITY” -
The SAID Principle, “Specific Adaptations to Imposed Demands,” refers to the fundamental concept that the activities and/or training we participate, in will induce highly specific adaptations related to the specific demands we consistently encounter. When developing a program for an athlete, you should make attempts to connect the SAID principle with what occurs within the sport, to improve performance in practice and competition. We refer to this as "sport-specific" training. A sport-specific program takes into consideration the primary muscles, movement patterns, contraction phases, and joint actions observed during the sport in question. It integrates a resistance training and conditioning program to promote such aspects further. While weight training cannot be entirely “sport-specific,” as participation in the sport itself will yield the most significant improvements, a sport-specific training program can build on adaptations that transfer into improved performance outcomes.
When coaching and programming for athletes, we must place a considerable emphasis on what they specifically need to excel in their sport. As an individual or athlete performs the exercise, the energy system(s) they utilize the most, will be the foundation of the adaptations they experience, hence why it is vital to consider the physiological components of the sport. Whereas high volume aerobic training promotes mitochondrial biogenesis and protein synthesis in slow-twitch muscle fibers, lower volume, and high-intensity training stimulate adaptive alterations in fast-twitch glycolytic and oxidative-glycolytic muscle fibers 1. Understanding evolving mechanisms in each energy system paves the way for inducing optimal training interactions and increasing athletic performance. Issurin (2019) explains that homeostatic regulation, stress adaptations, and super compensation effects are fundamental to an effective training program. 
“Supercompensation” is described as the accumulation of adaptations following a training session or cycle, including biomechanical, structural, mechanical, metabolic, neurophysiological advancements, and the body's return to standard functional capacity at new homeostatic levels 2. The type and intensity of exercise play a significant role in the magnitude of stress the athlete's faces and the adaptive responses to follow 1. Depending on the energy system largely at work during training, that system can give light to the adaptive responses the athlete will experience during the phases of super-compensation.  
When programming exercises, the most taxing, bilateral, multi-joint movements are placed at the beginning of the session for safety purposes and for the most effort to be given in their execution. The exercise selection and loading scheme for these initial primary exercises are dependent on the annual program phase, whether that be stabilization endurance, strength endurance, hypertrophy, maximal strength, or power output.