Answer:
all of these.
Step-by-step explanation:
Time-tested practices can be regarded as methods , ways that has been usings for long period of time that has produced a successful teams and can be trusted any time. It should be noted that Time-tested practices for developing successful teams are the followings;
✓showing enthusiasm
✓making timely decisions
✓ practicing innovation
✓admitting mistakes
✓ being flexible,