In reply to cgales:
I believe it is necessary sometimes.
When I want to disable checking in the scoreboard, for an example, I need the control in the sequence, so I need a env handle in the sequence.
I find a boring approach that link the handle of env in test_base in connect_phase to the handle in a sequencer. Then declare p_sequencer in the sequence. The sequence will have access to all components.
The config approach, as far as I am concerned, cannot or is difficult to turn the components dynamically.