There are several ways that professional triathletes can take their training to the next level:

Consistency: One of the most important factors in training is consistency. Athletes need to maintain a regular training schedule and be committed to it over the long term. This means training even when they don't feel like it or when life gets in the way.
Periodization: Professional triathletes often use periodization to structure their training. This involves breaking their training into specific phases, with each phase focusing on a different aspect of fitness, such as endurance, speed, or strength.
Recovery: Recovery is just as important as training, as it allows the body to adapt to the stress of exercise. Professional triathletes prioritize recovery by getting enough sleep, eating a healthy diet, and taking rest days when needed.
Cross-training: Professional triathletes may also incorporate cross-training into their routine, such as strength training, yoga, or swimming. This can help prevent injuries and improve overall fitness.
Data analysis: Many professional triathletes use technology to track their training data, such as heart rate, power output, and GPS data. They can then analyze this data to make adjustments to their training program and optimize their performance.
Mental training: Professional triathletes often work with sports psychologists to develop mental toughness and resilience. This can help them stay motivated and focused during training and competition.

Overall, taking training to the next level involves a combination of hard work, consistency, and smart training strategies.