Base-line seal/screen

[barknoll]

from NFHS home page:http://www.nfhs.org/Sports/basketball_emphasis.htm

points of emphasis 2003/4:

B. Screening:

1. A legal screener must be stationary prior to contact with hands and arms close to the body. When these two requirements are not met, and when there is sufficient contact delivered by the screener to bump, slow or displace, it is a foul on the screener.

2. When a screen is blind, or a rear screen, it is only legal when the screened player is allowed a normal step backward. The screened player must then make a legitimate attempt to get around a legal screen without forcing rough or "displacing" contact. This type of contact must result in a foul on the screened player.

3. When a screen is set in view of an opposing player, the screener can get as close as he or she wishes in a legal stationary position. The burden is on the screened player to avoid contact that may result in a foul.

.......I would have to interpret as: (#3)
If a defender makes a motion to defend the post, you could presume "the screen was set in view of the defender" at that point, thus if the wing player forced the defender to deny a potential lob pass, the the offensive post player then continued to just hold position---the wing player could then drive baseline and or pick/roll....