No, that's short sighted. What you need is to have 5 or 6 guys that are above the league level, one or two of them being far above. Then you rotate them in and out as subs during the regular season, making sure that they all get the required playoff eligibility, but never all show up at once. This is important because you have to have a 7-5 regular season record so the league doesn't want to move your team up a level. It helps if you start off 0-3. Then for the playoffs, you bring all your ringers and play them as much as possible, including only the 6 of them for the last half of the third, and all of any ensuing overtime. Collect your trophy and free beer certificate every season. Or at least that's what one team in two different leagues I play in does.