There is no tactic which will better serve you and your client in establishing credibility with the jury then to bring out negative points during direct examination and confronting them head on with believable explanations. If you wait until redirect, then it may be too late to salvage your witness. I always make a list of problems as the case progresses from investigation through discovery and on the trial. Come up with a strategy of either excluding the evidence or find a way to deal with it honestly and persuasively before the jury.
During direct examination, you can ask questions of your client or witness the jury is likely thinking. The witness is then provided an opportunity to take some of the sting out of the evidence by having a friendly questioner take them through the problem. The opposing attorney on cross-examination will be much more reluctant to extensively cover that area and come across as overbearing, looking as if he is desperate as he has nothing else to ask or add to outside of your examination.
The client or witness should be cautioned to stay calm throughout their cross-examination on any such topics. Once the matter has already been brought out to in direct examination, the jury will be looking much more at the witness’s reaction on cross. If they do not react and you do not react, the jury will likely conclude that the matter is not critical to their decision. Most jurors have never been in a courtroom before and will not consider the points important unless you act like they are.