How old is Delilah now? If she's not 8-9 months old I would let nature take its course and they will probably adjust fine as the permanent teeth grow in. If she is over 9 months old I would have her spayed and have all baby teeth removed asap.
Yep. Lucy is spayed and with limited registration and can be shown in juniors.Just a side note...spayed and neutered dogs can be shown in juniors.