This is MLS, so who knows what they really mean, but the PR also says:
- Targeted Allocation Money may be used to convert a current Designated Player to a non-Designated Player by buying down, on a prorated basis, his salary budget charge to at, or below, the maximum salary budget charge. If Targeted Allocation Money is used to free up a Designated Player slot, the club must simultaneously sign a new Designated Player at an investment equal to or greater than the player he is replacing.
One would presume that that bullet would be in conflict with the "new or re-sign" in the previous clause, but who knows. On can read the release as saying that any DP can be bought down with TAM money, but a team can only spend 1.5 million of TAM money to acquire a new or re-sign a current player.